GMAT Critical Reasoning Discussions

Hi all,

help me with this,i was confused b/w B and E?answer is E but why?thanks


The spacing of the four holes on a fragment of a bone flute excavated at a Neanderthal campsite is just what is required to play the third through sixth notes of the diatonic scalethe seven-note musical scale used in much of Western music since the Renaissance. Musicologists therefore hypothesize that the diatonic musical scale was developed and used thousands of years before it was adopted by Western musicians.

Which of the following, if true, most strongly supports the hypothesis?

A. Bone flutes were probably the only musical instrument made by Neanderthals.
B. No musical instrument that is known to have used a diatomic scale is of an earlier date than the flute found at the Neanderthal campsite.
C. The flute was made from a cave-bear bone and the campsite at which the flute fragment was excavated was in a cave that also contained skeletal remains of cave bears.
D. Flutes are the simplest wind instrument that can be constructed to allow playing a diatonic scale.
E. The cave-bear leg bone used to make the Neanderthal flute would have been long enough to make a flute capable of playing a complete diatonic scale.
Hi all,

help me with this,i was confused b/w B and E?answer is E but why?thanks


The spacing of the four holes on a fragment of a bone flute excavated at a Neanderthal campsite is just what is required to play the third through sixth notes of the diatonic scalethe seven-note musical scale used in much of Western music since the Renaissance. Musicologists therefore hypothesize that the diatonic musical scale was developed and used thousands of years before it was adopted by Western musicians.

Which of the following, if true, most strongly supports the hypothesis?

A. Bone flutes were probably the only musical instrument made by Neanderthals.
B. No musical instrument that is known to have used a diatomic scale is of an earlier date than the flute found at the Neanderthal campsite.
C. The flute was made from a cave-bear bone and the campsite at which the flute fragment was excavated was in a cave that also contained skeletal remains of cave bears.
D. Flutes are the simplest wind instrument that can be constructed to allow playing a diatonic scale.
E. The cave-bear leg bone used to make the Neanderthal flute would have been long enough to make a flute capable of playing a complete diatonic scale.


The answer should be E. E gives another evidence that the bone flute of Neanderthal is capable of playing the diatonic scale which strengthens the hypothesis. Whereas B talks about other musical instruments but does not confirm about the bone flute
Hi all,

Q)

A company plans to develop a prototype weeding machine that uses cutting blades with optical sensors and microprocessors that distinguish weeds from crop plants by
differences in shade of color. The inventor of the machine claims that it will reduce labor costs by virtually eliminating the need for manual weeding.
Which of the following is a consideration in favor of the companys implementing its plan to develop the prototype?
A. There is a considerable degree of variation in shade of color between weeds of different species.
B. The shade of color of some plants tends to change appreciably over the course of their growing season.
C. When crops are weeded manually, overall size and leaf shape are taken into account in distinguishing crop plants from weeds.
D. Selection and genetic manipulation allow plants of virtually any species to be economically bred to have a distinctive shade of color without altering their other characteristics.
E. Farm laborers who are responsible for the manual weeding of crops carry out other agricultural duties at times in the growing season when extensive weeding is not necessary.




could any body let me know why answer is D

Q)

A company plans to develop a prototype weeding machine that uses cutting blades with optical sensors and microprocessors that distinguish weeds from crop plants by differences in shade of color. The inventor of the machine claims that it will reduce labor costs by virtually eliminating the need for manual weeding.
Which of the following is a consideration in favor of the companys implementing its plan to develop the prototype?
A. There is a considerable degree of variation in shade of color between weeds of different species.: We are not concerned about the shades of color b/w weeds of diff species.

B. The shade of color of some plants tends to change appreciably over the course of their growing season.: Again the subject of discussion is not the course of their growing season.
C. When crops are weeded manually, overall size and leaf shape are taken into account in distinguishing crop plants from weeds.: The subject is does cost reduce using the machine weeds or not, the subject is not the size and shape of leaf.
D. Selection and genetic manipulation allow plants of virtually any species to be economically bred to have a distinctive shade of color without altering their other characteristics.: here, it means- genetic manipulation allows plants of diff species to be economically (cheapily) bred. in simple words it means- the machine weeding reduces labor cost. and we are reqd to support this only.


E. Farm laborers who are responsible for the manual weeding of crops carry out other agricultural duties at times in the growing season when extensive weeding is not necessary.: What does Farm Labourers do when they are not manually weeding is not the concern.

That is why D is the answer.



Hope that explains.


Regards,
Neha
Hi all,

Q)

A company plans to develop a prototype weeding machine that uses cutting blades with optical sensors and microprocessors that distinguish weeds from crop plants by
differences in shade of color. The inventor of the machine claims that it will reduce labor costs by virtually eliminating the need for manual weeding.
Which of the following is a consideration in favor of the companys implementing its plan to develop the prototype?
A. There is a considerable degree of variation in shade of color between weeds of different species.
B. The shade of color of some plants tends to change appreciably over the course of their growing season.
C. When crops are weeded manually, overall size and leaf shape are taken into account in distinguishing crop plants from weeds.
D. Selection and genetic manipulation allow plants of virtually any species to be economically bred to have a distinctive shade of color without altering their other characteristics.
E. Farm laborers who are responsible for the manual weeding of crops carry out other agricultural duties at times in the growing season when extensive weeding is not necessary.




could any body let me know why answer is D


My take is D
The machine identifies b/w the two by the color, so the answer should contain the point that crops & weed have different color for the machine to be useful -
A - Gives the difference in the color among different types of weeds & not weeds & crops
B - Gives the changes in the color of crops & does not compare the color of weeds & crops
C - If overall size is the point of distinction, then the machine is useless, so this contradicts.
D - Says that by genetic manipulation the color difference can be created, which will make machine useful. This is the correct ans.
E - This is irrelevant

Guys, this looks extremely easy and answer seems obvious but apparently the answer says otherwise. Please try out and help me out.

A study of marital relationship in which one partner's sleeping and waking cycles differ from those of the other partner reveals that such couples share fewer activities with each other and have more violent arguments than do couples in a relationship in which both partners follow the same sleeping and waking patterns. Thus, mismatched sleeping and waking cycles can seriously jeopardize a marriage.

Which of the following, if true, most seriously weakens the argument above?

a.) Married couples in which both spouses follow the same sleeping and waking patterns also occasionally have arguments that can jeopardize the couple's marriage.

b.) The sleeping and waking cycles of individuals tend to vary from season to season.

c.) The individuals who have been sleeping and waking cycles that differ significantly from those of their spouses tend to argue little with colleagues at work.

d.) People in unhappy marriages have been found to express hostility by adopting a different sleeping and waking cycles from that of their spouses.

e.) According to a recent study, most people's sleeping and waking cycles can be controlled and modified easily.

B, C and E are definitely out. OA is D. Can anyone help me out why is it not A instead? It does make sense isnt it.

Guys, this looks extremely easy and answer seems obvious but apparently the answer says otherwise. Please try out and help me out.

A study of marital relationship in which one partner's sleeping and waking cycles differ from those of the other partner reveals that such couples share fewer activities with each other and have more violent arguments than do couples in a relationship in which both partners follow the same sleeping and waking patterns. Thus, mismatched sleeping and waking cycles can seriously jeopardize a marriage.

Which of the following, if true, most seriously weakens the argument above?

a.) Married couples in which both spouses follow the same sleeping and waking patterns also occasionally have arguments that can jeopardize the couple's marriage.

b.) The sleeping and waking cycles of individuals tend to vary from season to season.

c.) The individuals who have been sleeping and waking cycles that differ significantly from those of their spouses tend to argue little with colleagues at work.

d.) People in unhappy marriages have been found to express hostility by adopting a different sleeping and waking cycles from that of their spouses.

e.) According to a recent study, most people's sleeping and waking cycles can be controlled and modified easily.

B, C and E are definitely out. OA is D. Can anyone help me out why is it not A instead? It does make sense isnt it.



The answer is indeed D only.
I did this ques few days ago and ya at first go only answer A made sense to me too. but that's not the case. Here's the Explanation. Hope it clears your doubt too.

Explanation:

The argument assumes that mismatched sleeping and waking cycles precede martial problems. Choice D weakens the argument by indicating that this assumption is false, and D is the best answer. The argument does not depend on there being only one cause of martial problems, so choice A is incorrect.

You already know why B,C and E cannot be the answer so will not give explanation for that.

Hope this helps.

Regards,
Neha
Hi All,
Try these !!!
4. At one time, European and Japanese companies tried to imitate their American rivals. Today, American appliance manufacturers import European scientists to lead their research staffs; American automakers design cars that mimic the styling of German, Italian, and French imports; and American electronics firms boast in their advertising of Japanese-style devotion to quality and reliability. In the world of high technology, America has lost the battle for international prestige.
Each of the following statements, if true, would help to support the claim above EXCEPT:
(A) An American camera company claims in its promotional literature to produce cameras as fine as the best Swiss imports.
(B) An American maker of stereo components designs its products to resemble those of a popular Japanese firm.
(C) An American manufacturer of video games uses a brand name chosen because it sounds like a Japanese word.
(D) An American maker of televisions studies German-made televisions in order to adopt German manufacturing techniques.
(E) An American maker of frozen foods advertises its dinners as Real European-style entrees prepared by fine French and Italian chefs.
15. Alba: I dont intend to vote for Senator Frank in the next election. She is not a strong supporter of the war against crime.
Tam: But Senator Frank sponsored the latest anticrime law passed by the Senate.
Alba: If Senator Frank sponsored it, it cant be a very strong anticrime law.
Which of the following identifies the most serious logical flaw in Albas reasoning?
(A) The facts she presents do not support her conclusion that Senator Frank is soft on crime.
(B) She assumes without proof that crime is the most important issue in the upcoming election.
(C) She argues in a circle, using an unsupported assertion to dismiss conflicting evidence.
(D) She attacks Senator Frank on personal grounds rather than on he merit as a political leader.
(E) In deciding not to vote for Senator Frank, she fails to consider issues other than crime.
2. In the years since the city of London imposed strict air-pollution regulations on local industry, the number of bird species seen in and around London has increased dramatically. Similar air-pollution rules should be imposed in other major cities.
Each of the following is an assumption made in the argument above EXCEPT:
(A) I n most major cities, air-pollution problems are caused almost entirely by local industry.
(B) Air-pollution regulations on industry have a significant impact on the quality of the air.
(C) The air-pollution problems of other major cities are basically similar to those once suffered by London.
(D) An increase in the number of bird species in and around a city is desirable
(E) The increased sightings of bird species in and around London reflect an actual increase in the number of species in the area.
Ronald: According to my analysis of the national economy, housing prices should not increase during the next six months unless interest rates drop significantly.
Mark: I disagree. One year ago, when interest rates last fell significantly, housing prices did not increase at all.
It can be inferred from the conversation above that Mark has interpreted Ronalds statement to mean that
(A) housing prices will rise only if interest rates fall
(B) if interest rates fall, housing prices must rise
(C) interest rates and housing prices tend to rise and fall together
(D) interest rates are the only significant economic factor affecting housing prices
(E) interest rates are likely to fall significantly in the next six months
The answer is indeed D only.
I did this ques few days ago and ya at first go only answer A made sense to me too. but that's not the case. Here's the Explanation. Hope it clears your doubt too.

Explanation:

The argument assumes that mismatched sleeping and waking cycles precede martial problems. Choice D weakens the argument by indicating that this assumption is false, and D is the best answer. The argument does not depend on there being only one cause of martial problems, so choice A is incorrect.

You already know why B,C and E cannot be the answer so will not give explanation for that.

Hope this helps.

Regards,
Neha


Hi Bhalim,

Option A, is not weakening it simply states what is already there in the argument. Both type of couples have arguments, but the one in which couple don't share the sleeping habbits is more voilent(" have more violent arguments than do couples in a relationship in which both partners follow the same sleeping and waking patterns.")
Also if you see the conclusion it says "Thus, mismatched sleeping and waking cycles can seriously jeopardize a marriage." but Option A just says jeopardize the couple's marriage.

Even if you have a look on question it say "Which of the following, if true, most seriously weakens the argument above?"


Further In Option D, It is weakening the assumption by saying that some time people do it knowingly thus weakening the conclusion .

Guys, this looks extremely easy and answer seems obvious but apparently the answer says otherwise. Please try out and help me out.

A study of marital relationship in which one partner's sleeping and waking cycles differ from those of the other partner reveals that such couples share fewer activities with each other and have more violent arguments than do couples in a relationship in which both partners follow the same sleeping and waking patterns. Thus, mismatched sleeping and waking cycles can seriously jeopardize a marriage.

Which of the following, if true, most seriously weakens the argument above?

a.) Married couples in which both spouses follow the same sleeping and waking patterns also occasionally have arguments that can jeopardize the couple's marriage.

b.) The sleeping and waking cycles of individuals tend to vary from season to season.

c.) The individuals who have been sleeping and waking cycles that differ significantly from those of their spouses tend to argue little with colleagues at work.

d.) People in unhappy marriages have been found to express hostility by adopting a different sleeping and waking cycles from that of their spouses.

e.) According to a recent study, most people's sleeping and waking cycles can be controlled and modified easily.

B, C and E are definitely out. OA is D. Can anyone help me out why is it not A instead? It does make sense isnt it.


A talks about people with same sleeping cycles, which is not the scope of the argument

Whereas D correctly shows a reason which completely contradicts the conclusion of the argument within in the scope of the argument.

D is a more valid answer.

Cheers
This one is really confusing does any body have an idea of how to go about it???

17. Every painting hanging in the Hoular Gallery is by a French painter. No painting in the Hoular Gallery is by a Vorticist. Only Vorticists use acrylic monochromes in their works.
If the information above is true, which of the following must also be true?
(A) No French painters are Vorticists.
(B) All Vorticists use acrylic monochromes in their works.
(C) Some French painters do not use acrylic monochromes in their works.
(D) No French painters use acrylic monochromes in their works.ďźˆC
(E) All French painters who use acrylics use acrylic monochromes in their works.
Hi All,
Below are some good RC's try them.

Explanations would be very much appreciated .


Questions 5
Although its purpose is laudable, the exclusionary rule, which forbids a court to consider evidence seized in violation of the defendant's constitutional rights, has unduly hampered law-enforcement efforts. Even when the rights violation was a minor or purely technical one, turning on a detail of procedure rather than on the abrogation of some fundamental liberty, and even when it has been clear that the police officers were acting in good faith, the evidence obtained has been considered tainted under this rule and may not even by introduced. In consequence, defendants who were undoubtedly guilty have been set free, perhaps to steal, rape, or murder again.
5. The author of the passage above assumes all of the following EXCEPT:
(A) The constitutional rights of criminal defendants should be protected.
(B) Most cases in which the exclusionary rule has been invoked have involved purely technical violations of constitutional principles.
(C) The number of cases whose outcome has been affected by the exclusionary rule is significant.
(D) Some of the defendants set free under the exclusionary rule have been guilty of serious criminal offenses.
(E) Merely technical violations of the rules concerning evidence should be treated
OA is B

11. Gloria: Those who advocate tuition tax credits for parents whose children attend private schools maintain that people making no use of a government service should not be forced to pay for it. Yet those who choose to buy bottled water rather than drink water from the local supply are not therefore exempt from paying taxes to maintain the local water supply.
Roger: Your argument is illogical. Children are required by law to attend school. Since school attendance is a matter not of choice, but of legal requirement, it is unfair for the government to force some parents to pay for it twice.
Which of the following responses by Gloria would best refute Roger's charge that her argument is illogical?
(A) Although drinking water is not required by law, it is necessary for all people, and therefore my analogy is appropriate.
(B) Those who can afford the tuition at a high-priced private school can well bear the same tax burden as those whose children attend public schools.
(C) If tuition tax credits are granted, the tax burden on parents who choose public schools will rise to an intolerable level.
(D) The law does not say that parents must send their children to private schools, only that the children must attend some kind of school, whether public or private.
(E) Both bottled water and private schools are luxury items, and it is unfair that some citizens should be able to afford them while others cannot.
OA is E

16. Which of the following best completes the passage below?
As long as savings deposits are insured by the government, depositors will have no incentive to evaluate the financial strength of a savings bank. Yield alone will influence their choice of bank. To attract deposits, banks will be forced to offer the highest possible interest rates. And since paying higher rates inevitably strains the financial strength of a bank, ______
(A) the government will be forced o impose limitations on interest rates
(B) deposit insurance will ultimately lead to the financial weakening of many banks
(C) savers will be forced to choose between deposit insurance and higher interest rates
(D) deposits will tend to go to the banks with the greatest financial strength
(E) bank profits will tend to rise to ever-higher levels
OA is B

Test1-Questions 8
Investing in real estate would be a profitable venture at this time. A survey in House magazine revealed that 85% of the magazine's readers are planning to buy a second home over the next few years. A study of the real estate industry, however, revealed that the current supply of homes could only provide for 65% of that demand each year.
8. Which of the following, if true, reveals a weakness in the evidence cited above?
(A) Real estate is a highly labor-intensive business.
(B) Home builders are not evenly distributed across the country.
(C) The number of people who want second homes has been increasing each year for the past ten years.
(D) Readers of House magazine are more likely than most people to want second homes.
(E) House magazine includes articles about owning a second home as well as articles about building a second home.
OA is D

Hi All,

I have recollected all the CR's (still unanswered )

Try them they are good .

Bit of explanation would be appreciated.
-------------------------------------------------------------------

Questions 5
Although its purpose is laudable, the exclusionary rule, which forbids a court to consider evidence seized in violation of the defendants constitutional rights, has unduly hampered law-enforcement efforts. Even when the rights violation was a minor or purely technical one, turning on a detail of procedure rather than on the abrogation of some fundamental liberty, and even when it has been clear that the police officers were acting in good faith, the evidence obtained has been considered tainted under this rule and may not even by introduced. In consequence, defendants who were undoubtedly guilty have been set free, perhaps to steal, rape, or murder again.
5. The author of the passage above assumes all of the following EXCEPT:
(A) The constitutional rights of criminal defendants should be protected.
(B) Most cases in which the exclusionary rule has been invoked have involved purely technical violations of constitutional principles.
(C) The number of cases whose outcome has been affected by the exclusionary rule is significant.
(D) Some of the defendants set free under the exclusionary rule have been guilty of serious criminal offenses.
(E) Merely technical violations of the rules concerning evidence should be treated


11. Gloria: Those who advocate tuition tax credits for parents whose children attend private schools maintain that people making no use of a government service should not be forced to pay for it. Yet those who choose to buy bottled water rather than drink water from the local supply are not therefore exempt from paying taxes to maintain the local water supply.
Roger: Your argument is illogical. Children are required by law to attend school. Since school attendance is a matter not of choice, but of legal requirement, it is unfair for the government to force some parents to pay for it twice.
Which of the following responses by Gloria would best refute Rogers charge that her argument is illogical?
(A) Although drinking water is not required by law, it is necessary for all people, and therefore my analogy is appropriate.
(B) Those who can afford the tuition at a high-priced private school can well bear the same tax burden as those whose children attend public schools.
(C) If tuition tax credits are granted, the tax burden on parents who choose public schools will rise to an intolerable level.
(D) The law does not say that parents must send their children to private schools, only that the children must attend some kind of school, whether public or private.
(E) Both bottled water and private schools are luxury items, and it is unfair that some citizens should be able to afford them while others cannot.



16. Which of the following best completes the passage below?
As long as savings deposits are insured by the government, depositors will have no incentive to evaluate the financial strength of a savings bank. Yield alone will influence their choice of bank. To attract deposits, banks will be forced to offer the highest possible interest rates. And since paying higher rates inevitably strains the financial strength of a bank, ______
(A) the government will be forced o impose limitations on interest rates
(B) deposit insurance will ultimately lead to the financial weakening of many banks
(C) savers will be forced to choose between deposit insurance and higher interest rates
(D) deposits will tend to go to the banks with the greatest financial strength
(E) bank profits will tend to rise to ever-higher levels

Test1-Questions 8
Investing in real estate would be a profitable venture at this time. A survey in House magazine revealed that 85% of the magazines readers are planning to buy a second home over the next few years. A study of the real estate industry, however, revealed that the current supply of homes could only provide for 65% of that demand each year.
8. Which of the following, if true, reveals a weakness in the evidence cited above?
(A) Real estate is a highly labor-intensive business.
(B) Home builders are not evenly distributed across the country.
(C) The number of people who want second homes has been increasing each year for the past ten years.
(D) Readers of House magazine are more likely than most people to want second homes.
(E) House magazine includes articles about owning a second home as well as articles about building a second home.


17. Every painting hanging in the Hoular Gallery is by a French painter. No painting in the Hoular Gallery is by a Vorticist. Only Vorticists use acrylic monochromes in their works.
If the information above is true, which of the following must also be true?
(A) No French painters are Vorticists.
(B) All Vorticists use acrylic monochromes in their works.
(C) Some French painters do not use acrylic monochromes in their works.
(D) No French painters use acrylic monochromes in their works.
(E) All French painters who use acrylics use acrylic monochromes in their works.

4. At one time, European and Japanese companies tried to imitate their American rivals. Today, American appliance manufacturers import European scientists to lead their research staffs; American automakers design cars that mimic the styling of German, Italian, and French imports; and American electronics firms boast in their advertising of Japanese-style devotion to quality and reliability. In the world of high technology, America has lost the battle for international prestige.
Each of the following statements, if true, would help to support the claim above EXCEPT:
(A) An American camera company claims in its promotional literature to produce cameras as fine as the best Swiss imports.
(B) An American maker of stereo components designs its products to resemble those of a popular Japanese firm.
(C) An American manufacturer of video games uses a brand name chosen because it sounds like a Japanese word.
(D) An American maker of televisions studies German-made televisions in order to adopt German manufacturing techniques.
(E) An American maker of frozen foods advertises its dinners as Real European-style entrees prepared by fine French and Italian chefs.

15. Alba: I dont intend to vote for Senator Frank in the next election. She is not a strong supporter of the war against crime.
Tam: But Senator Frank sponsored the latest anticrime law passed by the Senate.
Alba: If Senator Frank sponsored it, it cant be a very strong anticrime law.
Which of the following identifies the most serious logical flaw in Albas reasoning?
(A) The facts she presents do not support her conclusion that Senator Frank is soft on crime.
(B) She assumes without proof that crime is the most important issue in the upcoming election.
(C) She argues in a circle, using an unsupported assertion to dismiss conflicting evidence.
(D) She attacks Senator Frank on personal grounds rather than on he merit as a political leader.
(E) In deciding not to vote for Senator Frank, she fails to consider issues other than crime.

2. In the years since the city of London imposed strict air-pollution regulations on local industry, the number of bird species seen in and around London has increased dramatically. Similar air-pollution rules should be imposed in other major cities.
Each of the following is an assumption made in the argument above EXCEPT:
(A) I n most major cities, air-pollution problems are caused almost entirely by local industry.
(B) Air-pollution regulations on industry have a significant impact on the quality of the air.
(C) The air-pollution problems of other major cities are basically similar to those once suffered by London.
(D) An increase in the number of bird species in and around a city is desirable
(E) The increased sightings of bird species in and around London reflect an actual increase in the number of species in the area.

Ronald: According to my analysis of the national economy, housing prices should not increase during the next six months unless interest rates drop significantly.
Mark: I disagree. One year ago, when interest rates last fell significantly, housing prices did not increase at all.
It can be inferred from the conversation above that Mark has interpreted Ronalds statement to mean that
(A) housing prices will rise only if interest rates fall
(B) if interest rates fall, housing prices must rise
(C) interest rates and housing prices tend to rise and fall together
(D) interest rates are the only significant economic factor affecting housing prices
(E) interest rates are likely to fall significantly in the next six months



4. At one time, European and Japanese companies tried to imitate their American rivals. Today, American appliance manufacturers import European scientists to lead their research staffs; American automakers design cars that mimic the styling of German, Italian, and French imports; and American electronics firms boast in their advertising of "Japanese-style" devotion to quality and reliability. In the world of high technology, America has lost the battle for international prestige.

Each of the following statements, if true, would help to support the claim above EXCEPT:
(A) An American camera company claims in its promotional literature to produce cameras "as fine as the best Swiss imports."
(B) An American maker of stereo components designs its products to resemble those of a popular Japanese firm.
(C) An American manufacturer of video games uses a brand name chosen because it sounds like a Japanese word.
(D) An American maker of televisions studies German-made televisions in order to adopt German manufacturing techniques.
(E) An American maker of frozen foods advertises its dinners as "Real European-style entrees prepared by fine French and Italian chefs."
Explanation-
The Conclusion says,in the world of high technology, and only E is which doesn't talk about technology but about food.


15. Alba: I don't intend to vote for Senator Frank in the next election. She is not a strong supporter of the war against crime.
Tam: But Senator Frank sponsored the latest anticrime law passed by the Senate.
Alba: If Senator Frank sponsored it, it can't be a very strong anticrime law.

Which of the following identifies the most serious logical flaw in Alba's reasoning?
(A) The facts she presents do not support her conclusion that Senator Frank is soft on crime.
(B) She assumes without proof that crime is the most important issue in the upcoming election.
(C) She argues in a circle, using an unsupported assertion to dismiss conflicting evidence.
(D) She attacks Senator Frank on personal grounds rather than on he merit as a political leader.
(E) In deciding not to vote for Senator Frank, she fails to consider issues other than crime.

Explanation-
She doesn't give any evidence to support her claim and goes on about the same thing.


2. In the years since the city of London imposed strict air-pollution regulations on local industry, the number of bird species seen in and around London has increased dramatically. Similar air-pollution rules should be imposed in other major cities.
Each of the following is an assumption made in the argument above EXCEPT:
(A) In most major cities, air-pollution problems are caused almost entirely by local industry.
(B) Air-pollution regulations on industry have a significant impact on the quality of the air.
(C) The air-pollution problems of other major cities are basically similar to those once suffered by London.
(D) An increase in the number of bird species in and around a city is desirable
(E) The increased sightings of bird species in and around London reflect an actual increase in the number of species in the area.
Explanation-

For the conclusion to be true, it is neseccary that in major cities,the air-pollution is caused by local industry because in London, the air-pollution regulations were imposed on local industry which increased the no. of birds.


Ronald: According to my analysis of the national economy, housing prices should not increase during the next six months unless interest rates drop significantly.
Mark: I disagree. One year ago, when interest rates last fell significantly, housing prices did not increase at all.
It can be inferred from the conversation above that Mark has interpreted Ronald's statement to mean that
(A) housing prices will rise only if interest rates fall
(B) if interest rates fall, housing prices must rise
(C) interest rates and housing prices tend to rise and fall together
(D) interest rates are the only significant economic factor affecting housing prices
(E) interest rates are likely to fall significantly in the next six months
Explanation-

Mark's answer shows that he thinks that Ronald is stating a generalization that "when housing prices do not increase unless interest rates drop significantly" and that why he gives an example that defies this generalization. Hence, B is the correct choice as it is quite similar to the generalization.



My answers are in Blue above.
Do tell the correct answers.

regards,
Neha


17. Every painting hanging in the Hoular Gallery is by a French painter. No painting in the Hoular Gallery is by a Vorticist. Only Vorticists use acrylic monochromes in their works.
If the information above is true, which of the following must also be true?
(A) No French painters are Vorticists.
(B) All Vorticists use acrylic monochromes in their works.
(C) Some French painters do not use acrylic monochromes in their works.
(D) No French painters use acrylic monochromes in their works.
(E) All French painters who use acrylics use acrylic monochromes in their works.


The correct answer can only be D.
I'l explain it using Analogy-
Let painting in the Hoular gallery be A
French Painter be B
Vorticists be C
acrylic monochromes be D

Now from the given premise we have-

1)Every A is by a B.
2)No A is by a C.
3)Only C use D.

Now from 1st two premises we can say that: some of B is C.
and by using the 3rd premise we can also say that: some of the B also use D because C uses D.
And we can also say that Some of the B do not use D.

Now by replacing B and D in the Blue statement we get:

Some French painters do not use acrylic monochromes in their works.

I hope you got it, i don't know how else to explain this answer.
If you have any doubts ple ask. in the mean time, i'll find any other way to explain the answer.

Regards,
Neha

Answers and explaination marked..

Hi All,

I have recollected all the CR's (still unanswered )

Try them they are good .

Bit of explanation would be appreciated.
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Questions 5
Although its purpose is laudable, the exclusionary rule, which forbids a court to consider evidence seized in violation of the defendants constitutional rights, has unduly hampered law-enforcement efforts. Even when the rights violation was a minor or purely technical one, turning on a detail of procedure rather than on the abrogation of some fundamental liberty, and even when it has been clear that the police officers were acting in good faith, the evidence obtained has been considered tainted under this rule and may not even by introduced. In consequence, defendants who were undoubtedly guilty have been set free, perhaps to steal, rape, or murder again.
5. The author of the passage above assumes all of the following EXCEPT:
(A) The constitutional rights of criminal defendants should be protected.
(B) Most cases in which the exclusionary rule has been invoked have involved purely technical violations of constitutional principles.
(C) The number of cases whose outcome has been affected by the exclusionary rule is significant.
(D) Some of the defendants set free under the exclusionary rule have been guilty of serious criminal offenses.
(E) Merely technical violations of the rules concerning evidence should be treated

(A) The constitutional rights of criminal defendants should be protected.
Although its purpose is laudable, the exclusionary rule
(C) The number of cases whose outcome has been affected by the exclusionary rule is significant
.... has unduly hampered law-enforcement efforts.
(D) Some of the defendants set free under the exclusionary rule have been guilty of serious criminal offenses.
....In consequence, defendants who were undoubtedly guilty have been set free, perhaps to steal, rape, or murder again.
"perhaps....again" is used here to convey the idea that the released criminals might reoffend in the same manner as their original offence. There is no doubt that they have committed serious crimes.
(E) Merely technical violations of the rules concerning evidence should be treated differently from deliberate assaults upon human rights.
....Even when the rights violation was a minor or purely technical one, turning on a detail of procedure rather than on the abrogation of some fundamental liberty...
Only option B is left.

11. Gloria: Those who advocate tuition tax credits for parents whose children attend private schools maintain that people making no use of a government service should not be forced to pay for it. Yet those who choose to buy bottled water rather than drink water from the local supply are not therefore exempt from paying taxes to maintain the local water supply.
Roger: Your argument is illogical. Children are required by law to attend school. Since school attendance is a matter not of choice, but of legal requirement, it is unfair for the government to force some parents to pay for it twice.
Which of the following responses by Gloria would best refute Rogers charge that her argument is illogical?
(A) Although drinking water is not required by law, it is necessary for all people, and therefore my analogy is appropriate.
(B) Those who can afford the tuition at a high-priced private school can well bear the same tax burden as those whose children attend public schools.
(C) If tuition tax credits are granted, the tax burden on parents who choose public schools will rise to an intolerable level.
(D) The law does not say that parents must send their children to private schools, only that the children must attend some kind of school, whether public or private.
(E) Both bottled water and private schools are luxury items, and it is unfair that some citizens should be able to afford them while others cannot.

Gloria has to refute Roger's argument. So, In her counter argument, she has to stress on main point of Roger's argument.

16. Which of the following best completes the passage below?
As long as savings deposits are insured by the government, depositors will have no incentive to evaluate the financial strength of a savings bank. Yield alone will influence their choice of bank. To attract deposits, banks will be forced to offer the highest possible interest rates. And since paying higher rates inevitably strains the financial strength of a bank, ______
(A) the government will be forced o impose limitations on interest rates
(B) deposit insurance will ultimately lead to the financial weakening of many banks
(C) savers will be forced to choose between deposit insurance and higher interest rates
(D) deposits will tend to go to the banks with the greatest financial strength
(E) bank profits will tend to rise to ever-higher levels

CAUSE AND EFFECT Q
Insured Deposits --> Banks offer high ROI to attract ppl --> Bank will lose more money.
Insured Deposits

Test1-Questions 8
Investing in real estate would be a profitable venture at this time. A survey in House magazine revealed that 85% of the magazines readers are planning to buy a second home over the next few years. A study of the real estate industry, however, revealed that the current supply of homes could only provide for 65% of that demand each year.
8. Which of the following, if true, reveals a weakness in the evidence cited above?
(A) Real estate is a highly labor-intensive business.
(B) Home builders are not evenly distributed across the country.
(C) The number of people who want second homes has been increasing each year for the past ten years.
(D) Readers of House magazine are more likely than most people to want second homes.
(E) House magazine includes articles about owning a second home as well as articles about building a second home.

65% of actual population of area can be served with houses whereas that 85% is just about magazine readers. It might happen that 85% is 50% of total area population..

17. Every painting hanging in the Hoular Gallery is by a French painter. No painting in the Hoular Gallery is by a Vorticist. Only Vorticists use acrylic monochromes in their works.
If the information above is true, which of the following must also be true?
(A) No French painters are Vorticists. - some french may be vorticist
(B) All Vorticists use acrylic monochromes in their works. - some vorticist may be french painters who don't use it.
(C) Some French painters do not use acrylic monochromes in their works.
(D) No French painters use acrylic monochromes in their works. - some french painters may be vorticist who use it.
(E) All French painters who use acrylics use acrylic monochromes in their works. - Irrelavent..

Questions 5
Although its purpose is laudable, the exclusionary rule, which forbids a court to consider evidence seized in violation of the defendants constitutional rights, has unduly hampered law-enforcement efforts. Even when the rights violation was a minor or purely technical one, turning on a detail of procedure rather than on the abrogation of some fundamental liberty, and even when it has been clear that the police officers were acting in good faith, the evidence obtained has been considered tainted under this rule and may not even by introduced. In consequence, defendants who were undoubtedly guilty have been set free, perhaps to steal, rape, or murder again.
5. The author of the passage above assumes all of the following EXCEPT:
(A) The constitutional rights of criminal defendants should be protected.:
the line colored in green above supports this choice.
(B) Most cases in which the exclusionary rule has been invoked have involved purely technical violations of constitutional principles.
: "Even when the rights violation was a minor or purely technical one...." implies that techincal was only one kind of violation not the only kind of violation.
(C) The number of cases whose outcome has been affected by the exclusionary rule is significant.
(D) Some of the defendants set free under the exclusionary rule have been guilty of serious criminal offenses.
the line colored in maroon above supports both C and D choices.
(E) Merely technical violations of the rules concerning evidence should be treated :
"evidence obtained has been considered tainted under this rule and may not even by introduced. In consequence,...." shows that evidence was not treated..
All choices except B has been assumed.
16. Which of the following best completes the passage below?
As long as savings deposits are insured by the government, depositors will have no incentive to evaluate the financial strength of a savings bank. Yield alone will influence their choice of bank. To attract deposits, banks will be forced to offer the highest possible interest rates. And since paying higher rates inevitably strains the financial strength of a bank, ______
(A) the government will be forced to impose limitations on interest rates
(B) deposit insurance will ultimately lead to the financial weakening of many banks
(C) savers will be forced to choose between deposit insurance and higher interest rates
(D) deposits will tend to go to the banks with the greatest financial strength
(E) bank profits will tend to rise to ever-higher levels
Explanation-
The argument says that the deposits cannot evaluate the financial strength as long as the depositors are insured by the govt. now the banks increase the interest rates which is for sure to drecrease the financial strength of the depositors, now after only one thing is for sure to follow which is option B.
Rest all either out of scope or causual argument.


Test1-Questions 8
Investing in real estate would be a profitable venture at this time. A survey in House magazine revealed that 85% of the magazines readers are planning to buy a second home over the next few years. A study of the real estate industry, however, revealed that the current supply of homes could only provide for 65% of that demand each year.
8. Which of the following, if true, reveals a weakness in the evidence cited above?
(A) Real estate is a highly labor-intensive business.
(B) Home builders are not evenly distributed across the country.
(C) The number of people who want second homes has been increasing each year for the past ten years.
(D) Readers of House magazine are more likely than most people to want second homes.
(E) House magazine includes articles about owning a second home as well as articles about building a second home.
Explanation-

We need to weaken the evidence,which suggests that 85% people are likely to buy a second house in coming few years. the main weakness in the 'evidence' is whether the figure 85% is applicable to over-all population. In all the probability,people who participated in the survey were people who are interested in real estate and 85% is an inflated figure. Option D is closest to this reasoning and is the best option.



My answers is Blue above.
Hope that clears your doubt. if any doubt ple do ask.

Regards,
Neha

Hi Puys,

I am new to the forum and not sure if this is the right thread for my query.
I need the Book Powerscore CR Bible. I searched for it at various book stalls at Pune, no success.
Can anyone can help me to get this book?

Thanks in Adv .

15.People who take what others regard as a ridiculous position should not bother to say, I mean every word! For either their position truly is ridiculous, in which case insisting that they are serious about it only exposes them to deeper embarrassment, or else their position has merit, in which case they should meet disbelief with rational argument rather than with assurances of their sincerity.
Which one of the following arguments is most similar in its reasoning to the argument above?
(A) A practice that has been denounced as poor practice should not be defended on the grounds that this is how we have always done it. If the practice is a poor one, so much the worse that it has been extensively used; if it is not poor one, there must be a better reason for engaging in it than inertia.
(B) People who are asked why they eat some of the unusual foods they eat should not answer, because that is what I like. This sort of answer will sound either naive or evasive and thus will satisfy no one.
(C) People whose taste in clothes is being criticized should not replay, Every penny I spent on these clothes I earned honestly. For the issue raise by the critics is not how the money was come by but rather whether it was spent wisely.
(D) Scholars who champion unpopular new theories should not assume that the widespread rejection of their ideas shows that they must be on the right track. The truth is that few theories of any consequence are either wholly right or wholly wrong and thus there is no substitute for patient works in ascertaining which parts are right.
(E) People who set themselves goals that others denounce as overly ambitious do little to silence their critics if they say, I can accomplish this if anyone can. Rather, those people should either admit that their critics are right or not dignify the criticism with any reply.


??

Q. Commensalism is any relationship between two living things in which one benefits and the other is neither helped nor harmed. Oxpecker birds are commensal species that flock with the large mammals of the African Savannah. They feed on ticks, fleas, and flies that are attracted to the mammals' fur.

Which of the following, if true, can most reasonably be inferred from the statements above?
(A)
Oxpecker birds are neither helped nor harmed by the large mammals of the African Savannah.
(B)
Ticks, fleas, and flies are commensal species in their relationship with both oxpecker birds and the large mammals of the African Savannah.
(C)
No species exist in a commensal relationship with oxpecker birds except for large mammals of the African Savannah.
(D)
In commensal relationships, the smaller of the species in the relationship usually benefits while the larger is neither helped nor harmed.
(E)
Preying on small creatures drawn to the fur of the large mammals of the African Savannah does not significantly affect those mammals.