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M: It is almost impossible to find a person between the ages

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M: It is almost impossible to find a person between the ages [#permalink] New post 19 Sep 2012, 15:43
00:00
A
B
C
D
E

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Question Stats:

20% (02:26) correct 80% (01:21) wrong based on 5 sessions
M: It is almost impossible to find a person between the ages of 85 and 90 who primarily uses the left hand.

Q: Seventy to ninety years ago, however, children were punished for using their left hands to eat or to write and were forced to use their right hands.

Q’s response serves to counter any use by M of the evidence about 85 to 90 year olds in support of which one of the following hypotheses?
(A) Being born right-handed confers a survival advantage.
(B) Societal attitudes toward handedness differ at different times.
(C) Forcing a person to switch from a preferred hand is harmless.
(D) Handedness is a product of both genetic predisposition and social pressures.
(E) Physical habits learned in school often persist in old age.


NB: Good for mental muscles but I don't think GMAT contains this type of questions.
[Reveal] Spoiler: OA

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Re: Seventy to ninety years ago [#permalink] New post 19 Sep 2012, 20:11
Legendaddy wrote:
M: It is almost impossible to find a person between the ages of 85 and 90 who primarily uses the left hand.

Q: Seventy to ninety years ago, however, children were punished for using their left hands to eat or to write and were forced to use their right hands.

Q’s response serves to counter any use by M of the evidence about 85 to 90 year olds in support of which one of the following hypotheses?
(A) Being born right-handed confers a survival advantage.
(B) Societal attitudes toward handedness differ at different times.
(C) Forcing a person to switch from a preferred hand is harmless.
(D) Handedness is a product of both genetic predisposition and social pressures.
(E) Physical habits learned in school often persist in old age.


NB: Good for mental muscles but I don't think GMAT contains this type of questions.


Maybe this is an Inference type question

(A) Being born right-handed confers a survival advantage. (Good choice, M states that only right handed people survived till 90 years and all the left handed people did not. This has been countered by Q by stating that a lot of left handed children were forced to use their right hand. We cannot be sure as there could be left handed people above the age of 90)
(B) Societal attitudes toward handedness differ at different times. (Maybe, but there is no mention of the present attitudes, eliminate)
(C) Forcing a person to switch from a preferred hand is harmless. (Not relevant)
(D) Handedness is a product of both genetic predisposition and social pressures. (Good Choice, M has stated something which looks like it has got to do something with the genes, but Q has countered it by stating that it was due to social pressures)
(E) Physical habits learned in school often persist in old age. (Not relevant)

Why is A correct and D wrong? :|
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Re: Seventy to ninety years ago [#permalink] New post 19 Sep 2012, 20:52
getgyan wrote:
Legendaddy wrote:
M: It is almost impossible to find a person between the ages of 85 and 90 who primarily uses the left hand.

Q: Seventy to ninety years ago, however, children were punished for using their left hands to eat or to write and were forced to use their right hands.

Q’s response serves to counter any use by M of the evidence about 85 to 90 year olds in support of which one of the following hypotheses?
(A) Being born right-handed confers a survival advantage.
(B) Societal attitudes toward handedness differ at different times.
(C) Forcing a person to switch from a preferred hand is harmless.
(D) Handedness is a product of both genetic predisposition and social pressures.
(E) Physical habits learned in school often persist in old age.


NB: Good for mental muscles but I don't think GMAT contains this type of questions.


Maybe this is an Inference type question

(A) Being born right-handed confers a survival advantage. (Good choice, M states that only right handed people survived till 90 years and all the left handed people did not. This has been countered by Q by stating that a lot of left handed children were forced to use their right hand. We cannot be sure as there could be left handed people above the age of 90)
(B) Societal attitudes toward handedness differ at different times. (Maybe, but there is no mention of the present attitudes, eliminate)
(C) Forcing a person to switch from a preferred hand is harmless. (Not relevant)
(D) Handedness is a product of both genetic predisposition and social pressures. (Good Choice, M has stated something which looks like it has got to do something with the genes, but Q has countered it by stating that it was due to social pressures)
(E) Physical habits learned in school often persist in old age. (Not relevant)

Why is A correct and D wrong? :|


For D, No where it is mentioned in Q that the childer are able to do it, they are punished, forced but its not that they use it properly.
Since in M- old age people use Right hand, in Q- they were forced to user Right hand. So it implies that being born right-handed is advantageous.So A seems better choice.
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Re: Seventy to ninety years ago [#permalink] New post 19 Sep 2012, 20:53
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getgyan wrote:
Why is A correct and D wrong? :|

M presents evidence that could be used to support some unspoken hypothesis. We are to take it that, without even hearing that hypothesis, Q rebuts it by presenting counter-evidence. We’re asked to locate the disputed hypothesis.
In sum, we want an answer choice that would be supported by M’s statement and rebutted by Q’s statement, and that’s answer choice (A). M’s statement that virtually no one who has lived past 85 is left-handed could be used to argue that right-handed people have a survival advantage over—i.e., live longer than—left-handers. It could, that is, but for Q’s reply that most people born left-handers who are now age 85 were forced to use their right hands as children. That would mean that many right-handed 85-year-olds may have been born left-handed and forced to switch. The fact that you can’t find old southpaws doesn’t mean that they die earlier, but merely that they don’t behave like southpaws. And that’s how answer choice (A) is supported by M but rebutted by Q.
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Re: Seventy to ninety years ago   [#permalink] 19 Sep 2012, 20:53
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M: It is almost impossible to find a person between the ages

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