GMAT Critical Reasoning Discussions

hey, i need help with these

1)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.

I went for option A, since no painting in the gallery is Vorticist, and all paintings are by french painters. But the OA is C! can someone explain

2)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.


1. C
2. D

In 1, it says every painting in the gallery is by a French painter. There could be some french painters who are vorticists but their painting is not there in the Gallery. (because they are vorticists)

2. Roger's argument is the key here. he says "law requires children to attent school". Law doesn't state what kinda of school. It's open to individual choice whether to go to private school or public one.
Guys,

Try these:

1. Johnson is on firm ground when he asserts that the early editors of Dickinsons poetry often distorted her intentions. Yet Johnsons own, more faithful, text is still guilty of its own forms of distortion. To standardize Dickinsons often indecipherable handwritten punctuation by the use of the dash is to render permanent a casual mode of poetic phrasing that Dickinson surely never expected to see in print. It implies that Dickinson chose the dash as her typical mark of punctuation when, in fact, she apparently never made any definitive choice at all.
Which of the following best summarizes the authors main point?
(A) Although Johnson is right in criticizing Dickinsons early editors for their distortion of her work, his own text is guilty of equally serious distortions.
(B) Johnsons use of the dash in his text of Dickinsons poetry misleads readers about the poets intentions.
(C) Because Dickinson never expected her poetry to be published, virtually any attempt at editing it must run counter to her intentions.
(D) Although Johnsons attempt to produce a more faithful text of Dickinsons poetry is well-meaning, his study of the material lacks sufficient thoroughness.
(E) Dickinsons editors, including Johnson, have failed to deal adequately with the problem of deciphering Dickinsons handwritten manuscripts.

2. If A, then B.
If B, then C.
If C, then D.
If all of the statements above are true, which of the following must also be true?
(A) If D, then A.
(B) If not B, then not C.
(C) If not D, then not A.
(D) If D, then E.
(E) If not A, then not D.

3.As one who has always believed that truth is our nations surest weapon in the propaganda war against our foes, I am distressed by reports of disinformation campaigns by American intelligence agents in Western Europe. In a disinformation campaign, untruths are disseminated through gullible local journalists in order to damage the interests of our enemies and protect our own. Those who defend this practice say that lying is necessary to counter Soviet disinformation campaigns aimed at damaging Americas political interests. These apologists contend that one must fight fire with fire. I would point out to the apologists that the fire department finds water more effective.
10. The author of the passage above bases his conclusion on which of the following?
(A) A circular definition of disinformation
(B) An example of the ineffectiveness of lying as a weapon in the propaganda war
(C) An analogy between truth and water
(D) An appeal to the authority of the fire department
(E) An attack on the character of American intelligence agents in Western Europe

4. Which of the following, if true, would most strengthen the argument above?
(A) New resource deposits are constantly being discovered.
(B) The United States consumes one-third of all resources used in the world.
(C) Other countries need economic development more than the United States does.
(D) Other countries have agreed to hold their resource consumption at present levels.
(E) The United States has been conserving resources for several years.


5. 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.

6. At an enormous research cost, a leading chemical company has developed a manufacturing process for converting wood fibers into a plastic. According to the company, this new plastic can be used for, among other things, the hulls of small sailboats. But what does the company think sailboat hulls used to be made of? Surely the mania for high technology can scarcely go further than this.
18. The authors opinion of the manufacturing process described in the passage is based primarily on the fact that
(A) plastic is unlikely to be durable enough for high-quality sailboat hulls
(B) the research costs of developing the process outweigh any savings possible from the use of the plastic
(C) a small sailboat is not normally regarded as a high-tech product
(D) hulls for small sailboats can be made from wood without converting it into plastic
(E) many other spheres of human activity are in far greater need of technological research

Pls post explanations with your replies.

~Cheers


1.the point made is that the ****... made some own punctuation marks without the intentions of making any facts with those marks.but those marks in the present situation refers that he is making a statement or fact.hence b
2.Though nt very sure of solving these deductive reasoning.but here is my explanation-I thought of a as a circle and B is inside that and c is inside B abd D is inside c.so from this only last option can be deduced.hence-E
3.The author purpose is to said that the fir ecant be used to extinguish fire , like wise , the disinformation can also not be used to counter disinformation,hence -b
4.dont know frm where it came?
5.here the reasoning given is the crime will not be serious , this assertion is w/o any proofs.hence-C
6.Here the first three options are irreleveant to the question asked.the fourth option simply describes the product usefullness(or non usefullness).so based on the elimination answer is E.
regards

vikas

Try this:



More sports journals are sold in Hornby than in Milston. Therefore, the residents of Hornby are better informed about major sporting events than are the residents of Milston.

Each of the following, if true, weakens the conclusion above EXCEPT:

A. Hornby has a larger population than Milston.

B. Most residents of Milston work in Hornby and buy their reading material there.

C. The average newsstand price of journals sold in Hornby is lower than the average price of journals sold in Milston.

D. A monthly journal restricted to the coverage of local events is published in Hornby.

E. The average resident of Hornby spends less time reading sports journals than does the average resident of Milston.


I thought of a answer as B but its not B.Please somebody explain me thye answer.

Try this:



More sports journals are sold in Hornby than in Milston. Therefore, the residents of Hornby are better informed about major sporting events than are the residents of Milston.
Each of the following, if true, weakens the conclusion above EXCEPT:
A. Hornby has a larger population than Milston.
B. Most residents of Milston work in Hornby and buy their reading material there.
C. The average newsstand price of journals sold in Hornby is lower than the average price of journals sold in Milston.
D. A monthly journal restricted to the coverage of local events is published in Hornby.
E. The average resident of Hornby spends less time reading sports journals than does the average resident of Milston.


I thought of a answer as B but its not B.Please somebody explain me thye answer.



I think answer is Option E, Since the average resident spends less time reading....
Try this:



More sports journals are sold in Hornby than in Milston. Therefore, the residents of Hornby are better informed about major sporting events than are the residents of Milston.
Each of the following, if true, weakens the conclusion above EXCEPT:
A. Hornby has a larger population than Milston.
B. Most residents of Milston work in Hornby and buy their reading material there.
C. The average newsstand price of journals sold in Hornby is lower than the average price of journals sold in Milston.
D. A monthly journal restricted to the coverage of local events is published in Hornby.
E. The average resident of Hornby spends less time reading sports journals than does the average resident of Milston.


I thought of a answer as B but its not B.Please somebody explain me thye answer.


dude d answr is C its a OG type question....go n refer questn numbr 67 of og 11th..if still gt ny prob jst PM me...

hi guyz try out dez 2 qustn n plz do explain me ....:xmas:
1. Spectroscopic analysis has revealed the existence of frozen nitrogen, methane, and carbon monoxide on the surface of Pluto. Such ices have a tendency to vaporize, producing an atmosphere. Since the proportion of any gas in such an atmosphere depends directly on how readily the corresponding ice vaporizes, astronomers have concluded that the components of Pluto's atmosphere are nitrogen, carbon monoxide, and methane, in order of decreasing abundance.
The astronomers' argument relies on which one of the following assumptions?
(A) There is no more frozen nitrogen on the surface of Pluto than there is either frozen carbon monoxide or methane.
(B) Until space probes reach Pluto, direct analysis of the atmosphere is impossible.
(C) There is no frozen substance on the surface of Pluto that vaporizes more readily than methane but less readily than carbon monoxide.
(D) Nitrogen is found in the atmosphere of a planet only if nitrogen ice is found on the surface of that planet.C
(E) A mixture of nitrogen, carbon monoxide, and methane is characteristic of the substances from which the Solar System formed.


2. Members of the Amazonian Akabe people commonly take an early-morning drink of a tea made from the leaves of a forest plant. Although they greatly enjoy this drink, at dawn they drink it only in small amounts. Anthropologists hypothesize that since this tea is extraordinarily high in caffeine, the explanation for the Akabe's not drinking more of it at dawn is that high caffeine intake would destroy the surefootedness that their daily tasks require.
Which one of the following, if true, most seriously calls the anthropologists' explanation into question?
(A) The drink is full of nutrients otherwise absent from the Akabe diet.
(B) The Akabe also drink the tea in the evening, after their day's work is done.
(C) The leaves used for the tea contain a soluble narcotic.
(D) Akabe children are introduced to the tea in only a very weak form.C
(E) When celebrating, the Akabe drink the tea in large quantities.


Answrs r highlightd!!!!!!

geetsood Says
dude d answr is C its a OG type question....go n refer questn numbr 67 of og 11th..if still gt ny prob jst PM me...



Oops....yeah the answe is C, i missed the word Except...
hi guyz try out dez 2 qustn n plz do explain me ....:xmas:
1. Spectroscopic analysis has revealed the existence of frozen nitrogenc, methane, and carbon monoxide on the surface of Pluto. Such ices have a tendency to vaporize, producing an atmosphere. Since the proportion of any gas in such an atmosphere depends directly on how readily the corresponding ice vaporizes, astronomers have concluded that the components of Plutos atmosphere are nitrogen, carbon monoxide, and methane, in order of decreasing abundance.
The astronomers argument relies on which one of the following assumptions?
(A) There is no more frozen nitrogen on the surface of Pluto than there is either frozen carbon monoxide or methane.
(B) Until space probes reach Pluto, direct analysis of the atmosphere is impossible.
(C) There is no frozen substance on the surface of Pluto that vaporizes more readily than methane but less readily than carbon monoxide.
(D) Nitrogen is found in the atmosphere of a planet only if nitrogen ice is found on the surface of that planet.C
(E) A mixture of nitrogen, carbon monoxide, and methane is characteristic of the substances from which the Solar System formed.

We need to have the relationship between all the three gases volatility.C is the only answer that do

2. Members of the Amazonian Akabe people commonly take an early-morning drink of a tea made from the leaves of a forest plant. Although they greatly enjoy this drink, at dawn they drink it only in small amounts. Anthropologists hypothesize that since this tea is extraordinarily high in caffeine, the explanation for the Akabes not drinking more of it at dawn is that high caffeine intake would destroy the surefootedness that their daily tasks require.
Which one of the following, if true, most seriously calls the anthropologists explanation into question?
(A) The drink is full of nutrients otherwise absent from the Akabe diet.
(B) The Akabe also drink the tea in the evening, after their days work is done.
(C) The leaves used for the tea contain a soluble narcotic.
(D) Akabe children are introduced to the tea in only a very weak form.C
(E) When celebrating, the Akabe drink the tea in large quantities.

I am not sure of the soluble anrcotic part in answer C.
The question asks to have a relation between cafeine and the impact on foot.The Option E does that by contrasting , if they take more during celebrations then what abt their foot.
Answrs r highlightd!!!!!!


Regards
Vikas

Hi Puys , Its is really sad to have less inactivity on this thread.Even the answers are not discussed properly.
request all the serious takers to come out with their intellect on every of the question posted.I think its also a good to see every question of the thread since begning and discuss whenever there is a doubt.

Regards

Vikas

geetsood Says
dude d answr is C its a OG type question....go n refer questn numbr 67 of og 11th..if still gt ny prob jst PM me...

I cant find this question in OG , may be the question number is wrong.However can u xplain the answers, why B is incorrect.My answers are-
1.larger population means more journals will be sold bu it dosent mean more knowledge.
2.Though more journals are sold in H , but most of the T people bought it from H , so their knowledge will be more .
3.It satisfies the opening statement but how conclusion?
4.Not sure if it is a sport journal.
5.what about reading speed,Iq,literacy rate???

Regards

Vikas
I cant find this question in OG , may be the question number is wrong.However can u xplain the answers, why B is incorrect.My answers are-
1.larger population means more journals will be sold bu it dosent mean more knowledge.
2.Though more journals are sold in H , but most of the T people bought it from H , so their knowledge will be more .
3.It satisfies the opening statement but how conclusion?
4.Not sure if it is a sport journal.
5.what about reading speed,Iq,literacy rate???

Regards

Vikas

More sports journals are sold in Hornby than in Milston. Therefore, the residents of Hornby are better informed about major sporting events than are the residents of Milston.

Each of the following, if true, weakens the conclusion above EXCEPT:

A. Hornby has a larger population than Milston.

B. Most residents of Milston work in Hornby and buy their reading material there.

C. The average newsstand price of journals sold in Hornby is lower than the average price of journals sold in Milston.

D. A monthly journal restricted to the coverage of local events is published in Hornby.

E. The average resident of Hornby spends less time reading sports journals than does the average resident of Milston.



I think Answer should be C

We need a fact that doesn't weaken the argument. i.e. It should support, or at the very least, it shouln't weaken that conclusion.

add each of the answer choice with the arguments given in passage, just before conclusion and see the effect.

C seems most suitable choice, because it gives reason more journals are sold in Hornby, so it doesn't weaken the conclusion.

All other options, in a way, give reasons to contradict the fact (A, B) or facts irrelevent to conclusion (C) and E is casting doubt on the validity of claim.

Comments?
More sports journals are sold in Hornby than in Milston. Therefore, the residents of Hornby are better informed about major sporting events than are the residents of Milston.
Each of the following, if true, weakens the conclusion above EXCEPT:
A. Hornby has a larger population than Milston.
B. Most residents of Milston work in Hornby and buy their reading material there.
C. The average newsstand price of journals sold in Hornby is lower than the average price of journals sold in Milston.
D. A monthly journal restricted to the coverage of local events is published in Hornby.
E. The average resident of Hornby spends less time reading sports journals than does the average resident of Milston.


I think Answer should be C

We need a fact that doesn't weaken the argument. i.e. It should support, or at the very least, it shouln't weaken that conclusion.

add each of the answer choice with the arguments given in passage, just before conclusion and see the effect.

C seems most suitable choice, because it gives reason more journals are sold in Hornby, so it doesn't weaken the conclusion.

All other options, in a way, give reasons to contradict the fact (A, B) or facts irrelevent to conclusion (C) and E is casting doubt on the validity of claim.

Comments?

Here the conclusion -people from M are more aware of sports event than the people from H.How the statement C establish this?
Regards
Vikas
SUPERNUT Says
I think answer is Option E, Since the average resident spends less time reading....



no answer is C and i dont know how did they come to this answer.explaination given :

The price differential noted in C might help to explain the difference in sales,but it does not undermine the conclusion based on the difference.Therefore, C is the best answer.
Here the conclusion -people from M are more aware of sports event than the people from H.How the statement C establish this?
Regards
Vikas


I guess reading to ur explainations i understood the answer. Lemme try to explain you the answer.

Premise : More sport journals are sold in H than in M.

Conclusion : residents of H are better informed about major sporting events than are the residents of Milston.

B.its wrong because it weakens the argument. it says residents of Milston buy their reading material from Hornby, may be Milston residents could be more informed or may not be. Where as we want something that supports H residents to be more informed abt sport journals.but here it talks about M residents.

D.its not relevant.

E.In this again it says residents of H are less informed than residents of M,from their tendancy to spend time in reading ,so it does not support the conclusion.

now we are left with A and C

I think A is very vague to decide wheather larger population of H means better informed H residents.

In C it says that price of a sport journals sold in H is lower,it in a way supports the premise given that "More sport journals are sold in H than in Y" caz of price considerations and therefore may be fills a logical gap between premise and conclusion.

so following sequence could be established:
P1 -- Prices of sport journals at H are lesser than at M
P2 -- because of that more sport journals are sold at H than at M.
Conclusion -- Therefore residents of H are more informed than residents of M.

Guess it was quite long ..........i dont know wheather it convinve you or not.

Please comment on this? and correct me if i am wrong.....?

Look for the second one, the anthropologists hypothesize that they do not drink much because they want surefootedness or a state where they are completely in control. But presence of narcotics ditectly challenges the anthropolosist,as its presence would mean that these guys wont be surefooted any more.


Try this :
The imposition of quotas limiting imported wheat will not help large local farms. In fact, the quotas will help small local farms flourish. Those small domestic farms will take more business from the large farms than would have been taken by the foreign farms in the absence of quotas.

Which of the following, if true, would cast the most serious doubt on the claim made in the last sentence above?


A. Quality rather than price is a major factor in determining the type of wheat bought by a particular client.

B. Foreign wheat growers have long produced grades of wheat comparable in quality to the wheat grown locally.

C. Local quotas on imported goods have often induced other countries to impose similar quotas on this countrys goods.

D. Small domestic farms consistently produce better grades of wheat than do the big farms.

E. Small domestic farms produce low-volume, specialized types of wheat that are not produced by the large local farms.

Thanks Ashishkd ,
totally convince with your explanation.

lets Rock


Try this :
The imposition of quotas limiting imported wheat will not help large local farms. In fact, the quotas will help small local farms flourish. Those small domestic farms will take more business from the large farms than would have been taken by the foreign farms in the absence of quotas.
Which of the following, if true, would cast the most serious doubt on the claim made in the last sentence above?
A. Quality rather than price is a major factor in determining the type of wheat bought by a particular client.
B. Foreign wheat growers have long produced grades of wheat comparable in quality to the wheat grown locally.
C. Local quotas on imported goods have often induced other countries to impose similar quotas on this countrys goods.
D. Small domestic farms consistently produce better grades of wheat than do the big farms.
E. Small domestic farms produce low-volume, specialized types of wheat that are not produced by the large local farms.

Will go for E.If the small farms are producing variety that is not produced by large farms , how large farms biz will be captured

Lets Rock
Will go for E.If the small farms are producing variety that is not produced by large farms , how large farms biz will be captured

Lets Rock



no answer given is D for this.which i did not understand. and its explaination says :

choice D, since better quality wheat should sell better than poorer quality wheat.
no answer given is D for this.which i did not understand. and its explaination says :

choice D, since better quality wheat should sell better than poorer quality wheat.



The explanation seems supporting the claim rather than doubting it...