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rohansherry
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i thought i am doing bad n Quant... when i encountered this 24 Aug 2009, 12:32
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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

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Question Stats:

100% (01:35) correct 0% (00:00) wrong based on 3 sessions

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i thought i am doing bad n Quant... when i encountered this ques..But it was somthing else.... Pls explain how it could be E..



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LenaA
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i thought i am doing bad n Quant... when i encountered this 24 Aug 2009, 12:53
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We do not know if set of memebers in drama club and set of memebers in music club are mutually exclusive sets. They might overlap, meaning there are members that belong to both clubs. We can't figure out the total number of people in combined club since we do not know how many people were members in both music and drama clubs.
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i thought i am doing bad n Quant... when i encountered this 24 Aug 2009, 12:55
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LenaA
We do not know if set of memebers in drama club and set of memebers in music club are mutually exclusive sets. They might overlap, meaning there are members that belong to both clubs. We can't figure out the total number of people in combined club since we do not know how many people were members in both music and drama clubs.
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I beg to differ...... But no way it can be interperated from the ques.... the ques has to give atleast some detail thta they can be common.. they simply saying combining two clubs..... am i thinking stupidly??
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LenaA
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i thought i am doing bad n Quant... when i encountered this 24 Aug 2009, 13:19
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rohansherry
LenaA
We do not know if set of memebers in drama club and set of memebers in music club are mutually exclusive sets. They might overlap, meaning there are members that belong to both clubs. We can't figure out the total number of people in combined club since we do not know how many people were members in both music and drama clubs.


I beg to differ...... But no way it can be interperated from the ques.... the ques has to give atleast some detail thta they can be common.. they simply saying combining two clubs..... am i thinking stupidly??
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Think "GMAT way". Consider all possible options (unless you can dedcut from some info that one of them is not possible.
Here for example,
you have two options:
1) Two clubs have different members. Then you can figure out the answer, combining the statements.
2) Two clubs does not have different members, there were members that participated in both clubs prior to merger. Then if you add 16+20, you are double counting some members...If we do not know how many drama club members were also music club members, we can't figure out the answer, even combining both statements.

The question does not give any information, so you can't discard the second option and conclude C based only on the first option analysis.
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i thought i am doing bad n Quant... when i encountered this 24 Aug 2009, 13:21
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LenaA
rohansherry
LenaA
We do not know if set of memebers in drama club and set of memebers in music club are mutually exclusive sets. They might overlap, meaning there are members that belong to both clubs. We can't figure out the total number of people in combined club since we do not know how many people were members in both music and drama clubs.


I beg to differ...... But no way it can be interperated from the ques.... the ques has to give atleast some detail thta they can be common.. they simply saying combining two clubs..... am i thinking stupidly??


Think "GMAT way". Consider all possible options (unless you can dedcut from some info that one of them is not possible.
Here for example,
you have two options:
1) Two clubs have different members. Then you can figure out the answer, combining the statements.
2) Two clubs does not have different members, there were members that participated in both clubs prior to merger. Then if you add 16+20, you are double counting some members...If we do not know how many drama club members were also music club members, we can't figure out the answer, even combining both statements.

The question does not give any information, so you can't discard the second option and conclude C based only on the first option analysis.
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Ok honestly ....who all would have goone with E here
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defoue
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i thought i am doing bad n Quant... when i encountered this 25 Aug 2009, 06:52
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My first answer was D. But considering the double counting possibility, I would rather go on E

What is OA?
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Ibodullo
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i thought i am doing bad n Quant... when i encountered this 25 Aug 2009, 22:53
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defoue
My first answer was D. But considering the double counting possibility, I would rather go on E

What is OA?
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OA is E, as it shown in the picture above. Good catch LenaA. Tricky question
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i thought i am doing bad n Quant... when i encountered this 26 Aug 2009, 22:19
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I would have gone for E.

GMAC tricks us in making assumptions we should not be making.

This one is close to the question I saw earlier.


Did the airplane every break the FAA Max Speed limit of 640 mph.

Stmt I: 1 set of numbers to calc. ave. speed
Stmt II: another set of number to calc. ave. speed

Here you may be tempted to calculate the ave speed and say no it did not !
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i thought i am doing bad n Quant... when i encountered this 27 Aug 2009, 08:08
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LenaA
We do not know if set of memebers in drama club and set of memebers in music club are mutually exclusive sets. They might overlap, meaning there are members that belong to both clubs. We can't figure out the total number of people in combined club since we do not know how many people were members in both music and drama clubs.
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I believe this thought is correct.
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Aleehsgonji
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i thought i am doing bad n Quant... when i encountered this 27 Aug 2009, 08:42
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As we are not sure of the people common in both the clubs, we cannot derive at the percentage of males in the club. So answer is E
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hogann
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i thought i am doing bad n Quant... when i encountered this 27 Aug 2009, 08:42
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The simplicity of this question through up redflags right away.

The GMAT is an evil beast. Be cautious of low hanging fruit.



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