GMAT Problem Solving Discussions

Guys, try this one:

In ancient times, Nubia was the principal corridor where there were cultural influences transmitted between Black Africa and the Mediterranean basin.
(A) where there were cultural influences transmitted
(B) through which cultural influences were transmitted
(C) where there was a transmission of cultural influences
(D) for the transmitting of cultural influences
(E) which was transmitting cultural influences

Guys, try this one:

In ancient times, Nubia was the principal corridor where there were cultural influences transmitted between Black Africa and the Mediterranean basin.
(A) where there were cultural influences transmitted
(B) through which cultural influences were transmitted
(C) where there was a transmission of cultural influences
(D) for the transmitting of cultural influences
(E) which was transmitting cultural influences


B?
You pass through a corridor
Guys, try this one:

In ancient times, Nubia was the principal corridor where there were cultural influences transmitted between Black Africa and the Mediterranean basin.
(A) where there were cultural influences transmitted
(B) through which cultural influences were transmitted
(C) where there was a transmission of cultural influences
(D) for the transmitting of cultural influences
(E) which was transmitting cultural influences


I think answer is E.
My explanation... where should refer exactly to a place but here it refers to the corridor so A and D ruled out. D had inappropriate gerund transmitting of. Between B and E, B was in passive so I chose E over B. Can anyone confirm this answer and explanation??

Folks,

Any clue about this one ? May be it is very easy...I can't get the clue...
Please see the attachment.

Thanks !

Folks,

Any clue about this one ? May be it is very easy...I can't get the clue...
Please see the attachment.

Thanks !


C-->5??
4+y = -5 =>y = -9
4+x = 1 => x = -3
e+ (-3)= 7 =>e = 10
e+z = 10 => z = 0
4+z = m =>m = 4
10+y =n => n = 1

m+n = 5
C-->5??
4+y = -5 =>y = -9
4+x = 1 => x = -3
e+ (-3)= 7 =>e = 10
e+z = 10 => z = 0
4+z = m =>m = 4
10+y =n => n = 1

m+n = 5


Thanks Neo2000 ! It is easier than I thought, but tricky enough for question number 2 on the test !

Thanks

the answer for

In ancient times, Nubia was the principal corridor where there were cultural influences transmitted between Black Africa and the Mediterranean basin.
(A) where there were cultural influences transmitted

(B) through which cultural influences were transmitted
(C) where there was a transmission of cultural influences
(D) for the transmitting of cultural influences
(E) which was transmitting cultural influences

OA is B.

Even i concur with neo. one passes 'through' a corridor.

Folks,

Any clue about this one ? May be it is very easy...I can't get the clue...
Please see the attachment.

Thanks !



Hey alpha,

the answer to this one is pretty straight forward. Just add/subtract the unmbers present on bith sides and you weasily end up at the answer. It should be 5.

m + n = 5

guys check this one out. Its a bold faced question. I invaiably get these kinda ques wrong.

Modern navigation systems, which are found in most of today?s commercial aircraft, are made with low-power circuitry, which is more susceptible to interference than the vacuum-tube circuitry found in older planes. During landing, navigation systems receive radio signals from the airport to guide the plane to the runway. Recently, one plane with low-power circuitry veered off course during landing, its dials dimming, when a passenger turned on a laptop computer. Clearly, modern aircraft navigation systems are being put at risk by the electronic devices that passengers carry on board, such as cassette players and laptop computers.
The two portions in boldface play which of the following roles?
(A) The first is a principle that the argument relies on and the second is a conclusion that can be drawn from the first.
(B) The first is a fact that argument relies on and the second is a conclusion that must be drawn from this argument.
(C) The first acknowledges a consideration that supports that main position; the second is that conclusion.
(D) The first is an evidence that supports the conclusion, the second is that conclusion.
(E) The first is a principle that is necessary for this argument, the second is a conclusion that could be drawn from this argument.

guys here's a DS ques. Please post the expln:

At a certain university, if 50 percent of the people who inquire about admission policies actually submit applications for admission, what percent of those who submit applications for admission enroll in classes at the university?
(1) Fifteen percent of those who submit applications for admission are accepted at the university.
(2) Eighty percent of those who are accepted send a deposit to the university.

guys here's a DS ques. Please post the expln:

At a certain university, if 50 percent of the people who inquire about admission policies actually submit applications for admission, what percent of those who submit applications for admission enroll in classes at the university?
(1) Fifteen percent of those who submit applications for admission are accepted at the university.
(2) Eighty percent of those who are accepted send a deposit to the university.


I think its E.
Very less info...may be who submit application do not enquire or ppl who send a deposit do not enroll for classes. NO info here. E
guys check this one out. Its a bold faced question. I invaiably get these kinda ques wrong.

Modern navigation systems, which are found in most of today?s commercial aircraft, are made with low-power circuitry, which is more susceptible to interference than the vacuum-tube circuitry found in older planes. During landing, navigation systems receive radio signals from the airport to guide the plane to the runway. Recently, one plane with low-power circuitry veered off course during landing, its dials dimming, when a passenger turned on a laptop computer. Clearly, modern aircraft navigation systems are being put at risk by the electronic devices that passengers carry on board, such as cassette players and laptop computers.
The two portions in boldface play which of the following roles?
(A) The first is a principle that the argument relies on and the second is a conclusion that can be drawn from the first.
(B) The first is a fact that argument relies on and the second is a conclusion that must be drawn from this argument.
(C) The first acknowledges a consideration that supports that main position; the second is that conclusion.
(D) The first is an evidence that supports the conclusion, the second is that conclusion.
(E) The first is a principle that is necessary for this argument, the second is a conclusion that could be drawn from this argument.


I think it is E. I am going by gut feel. :oops:

hey guys,

why isnt anybody posting the answers or atleast some new questions. Guys where's all the enthu gone??? pravs u there???

hey guys,

why isnt anybody posting the answers or atleast some new questions. Guys where's all the enthu gone??? pravs u there???


Sandy...you are right. wheres all the enthu gone?? really thats exactly the question i am asking myself. i dont know, but i somehow dont feel the same enthu that i had abt 15-20 days ago...doesnt mean that i am quitting or giving up gmat or anything of that sort...but just that it i am not able to focus as much. I know its bad and I am so mad!! hehe, that rhymed.

Well, I gotta get my act together. No 2 things abt it.
And the same holds true for everyone else who feels da same!! C'mon u fellas! get up, dust those bums and tame the beast!! dats the sole purpose of our lives!!

:grab:


Cheers!
Satish
Solved
I found this one to be tricky...

1) Transnational cooperation among corporations is experiencing a model renaissance among United States firms, even though projects undertaken by two or more corporations under a collaborative agreement are less profitable than projects undertaken by a singly corporation . The advantage of transnational cooperation is that such joint international projects may allow United States firms to win foreign contracts that they would not
otherwise be able to win.
Which of the following statements by a United States corporate officer best fits the situation of United States firms as described in the passage above?
(A) "We would rather make only a share of the profit and also risk only a share of a possible loss than run the full risk of a loss."
(B) "We would rather make a share of a relatively modest profit than end up making none of a potentially much bigger profit."
(C) "We would rather cooperate and build good will than poison the business climate by all-out competition."
(D) "We would rather have foreign corporations join us in American projects than join them in projects in their home countries."
(E) "We would rather win a contract with a truly competitive bid of our own than get involved in less profitable collaborative agreements."
Which of the following is information provided by the passage above?

(A) Transnational cooperation involves projects too big for a single corporation to handle.
(B) Transnational cooperation results in a pooling of resources leading to high-quality performance.
(C) Transnational cooperation has in the past been both more common and less common than it is now among United States firms.
(D) Joint projects between United States and foreign corporation are not profitable enough to be worth undertaking.
(E) Joint projects between United States and foreign corporations benefit only those who commission the projects.
=================
Another one---
2) Although migraine headaches are believed to be caused by food allergies, putting patients on diets that eliminate those foods to which the patients have been demonstrated to have allergic migraine reactions frequently does not stop headaches. Obviously, some other cause of migraine headaches besides food allergies much exist.
Which of the following, if true, would most weaken the conclusion above?
(A) Many common foods elicit an allergic response only after several days, making it very difficult to observe links between specific foods patients eat and headaches they develop.
(B) Food allergies affect many people who never develop the symptom of migraine headaches.
(C) Many patients report that the foods that cause them migraine headaches are among the foods that they most enjoy eating.
(D) Very few patients have allergic migraine reactions as children live migraine-free adult lives once they have eliminated from their diets foods to which they have been demonstrated to be allergic.
(E) Very rarely do food allergies cause patients to suffer a symptom more severe than that of migraine headaches.
Cheers & ATB!
Satish
guys here's a DS ques. Please post the expln:

At a certain university, if 50 percent of the people who inquire about admission policies actually submit applications for admission, what percent of those who submit applications for admission enroll in classes at the university?
(1) Fifteen percent of those who submit applications for admission are accepted at the university.
(2) Eighty percent of those who are accepted send a deposit to the university.


It is E. Sending a deposit and getting accepted doesnt logically entail "enrollling" in classes.

helllo friends

i'm ridz. i'm new to pagalguy but i think this is the place to b if u wanna interact with ppl sailing in the gmat prep boat!!:)
i'm basically frm bombay but currently put up in japan.
btw...me gonna take the gmat in march.

this is one of the problems i've been racking my brains for:( ....i'll be glad if someone can help!
A fair 2 sided coin is flipped 6 times. what is the probtly that tails will be the result at least twice but not more than 5 times?

A)3/4
B)32/36
C)8/9
D)61/64
E)7/8

Hi satish

i think that the answer for the first one is B coz the companies will be able to make atleast some profit if they acquire the project rather than no profit at all.
and for the sencond question related to the same paragraph the answer acc to me is C.

Also for the migrane qs my i guess the ans is D coz the elimination of the food stuffs show delayed effect and hence the argument can b weakened.
Do let me know if i'm wrong!!

cheers
ridz

helllo friends

......this is one of the problems i've been racking my brains for:( ....i'll be glad if someone can help!
A fair 2 sided coin is flipped 6 times. what is the probtly that tails will be the result at least twice but not more than 5 times?

A)3/4
B)32/36
C)8/9
D)61/64
E)7/8



Hey ridz...i think the answer shuld be 7/8

since the coin is flipped 6 times the total no of possiblities are 64.....

now the q asks for the probablity of atleast 2 and not more than 5.....

the probablilty for 2 times is 6c2/64
the probability for 3 times is 6c3/64
the probability for 4 times is 6c4/64
the probability for 5 times is 6c5/64

now since these are mutually exclusive evnts for the probability u need ti addd all of them

therefore we have ( 6c2+6c3+6c4+6c5)/64= 56/64=7/8...
Hey ridz...i think the answer shuld be 7/8

since the coin is flipped 6 times the total no of possiblities are 64.....

now the q asks for the probablity of atleast 2 and not more than 5.....

the probablilty for 2 times is 6c2/64
the probability for 3 times is 6c3/64
the probability for 4 times is 6c4/64
the probability for 5 times is 6c5/64

now since these are mutually exclusive evnts for the probability u need ti addd all of them

therefore we have ( 6c2+6c3+6c4+6c5)/64= 56/64=7/8...


hey wat do u guys think abt my ans to satish's CR qs......has anyone tried answering them??