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If the drama club and music club are combined, what percent

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If the drama club and music club are combined, what percent [#permalink] New post 30 Apr 2008, 17:14
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A
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C
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E

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  65% (hard)

Question Stats:

46% (02:32) correct 54% (00:32) wrong based on 116 sessions
If the drama club and music club are combined, what percent of the combined membership will be male?

(1) Of the 16 members of the drama club, 15 are male.
(2) Of the 20 members of the music club, 10 are male.

OPEN DISCUSSION OF THIS QUESTION IS HERE: if-the-drama-club-and-music-club-is-combined-what-percent-109769.html
[Reveal] Spoiler: OA

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Last edited by Yahsek on 30 Apr 2008, 18:12, edited 1 time in total.
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Re: If the drama club and music club are combined, what percent [#permalink] New post 30 Apr 2008, 17:31
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c

Dm = males in drama club
Df = females in drama club
Mm = males in music club
Mf = females in music club

The question is asking what is the value of (Dm+Mm)/(Dm+Df+Mm+Mf).
Only c gives all values need to calculate above equation.
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Re: If the drama club and music club are combined, what percent [#permalink] New post 01 May 2008, 19:50
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YihWei wrote:
If the drama club and music club are combined, what percent of the combined membership will be male?
(1) Of the 16 members of the drama club, 15 are male.
(2) Of the 20 members of the music club, 10 are male.


E. if some of the male members of the drama club are also the members of the music club.
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Re: If the drama club and music club are combined, what percent [#permalink] New post 02 May 2008, 05:08
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I think it´s E
It´s not said haw many men are in both clubs
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Re: If the drama club and music club are combined, what percent [#permalink] New post 02 May 2008, 05:47
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YihWei wrote:
If the drama club and music club are combined, what percent of the combined membership will be male?
(1) Of the 16 members of the drama club, 15 are male.
(2) Of the 20 members of the music club, 10 are male.


I went with E for the reason that a person can be member of both clubs at the same time.
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Re: If the drama club and music club are combined, what percent [#permalink] New post 13 May 2010, 06:54
I think that the OA is C
And if nothing is explicit, you cannot assume that there are members of both club
e will be the answer if some of the members are members of both club
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Re: If the drama club and music club are combined, what percent [#permalink] New post 27 Jun 2010, 12:20
Its C as we cannot make assumptions unless given.
Please post the OA.
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Re: If the drama club and music club are combined, what percent [#permalink] New post 07 Oct 2010, 02:11
I'll chime in. The OA is E.

Although this question comes from the GMATPrep #2 CAT, it is very poorly worded (I hope I don't get a question like this on the test). It assumes that men can be members of both clubs, without explicitly saying so. I picked C as well, and got it wrong.
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Re: If the drama club and music club are combined, what percent [#permalink] New post 30 Oct 2011, 16:34
Just got tripped up on this question. I chose C not thinking the men could be part of both groups.
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Re: If the drama club and music club are combined, what percent [#permalink] New post 31 Oct 2011, 21:44
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Here is a video explanation to this somewhat confusing problem.

http://www.gmatquantum.com/shared-posts ... ets19.html

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Re: If the drama club and music club are combined, what percent [#permalink] New post 03 Jan 2015, 09:49
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Re: If the drama club and music club are combined, what percent [#permalink] New post 05 Jan 2015, 03:21
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No C is not right. We cannot assume that there is no overlap between the clubs.

If the drama club and music club is combined, what percent of the combined membership is male?

(1) Of the 16 members of the drama club, 15 are male. Not sufficient.

(2) Of the 20 members of the music club, 10 are male. Not sufficient.

(1)+(2) Since we don't know how many members of the drama club were also the members of the music club then we can not assume that there wasn't any overlap between the clubs and simply write (15+10)/(16+20), so even taken together statements are not sufficient.

Answer: E.

OPEN DISCUSSION OF THIS QUESTION IS HERE: if-the-drama-club-and-music-club-is-combined-what-percent-109769.html
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Re: If the drama club and music club are combined, what percent   [#permalink] 05 Jan 2015, 03:21
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