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How many of the 42 people in a group are employed students?

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How many of the 42 people in a group are employed students? [#permalink] New post 17 Apr 2010, 04:34
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A
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E

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  15% (low)

Question Stats:

81% (01:29) correct 19% (00:28) wrong based on 63 sessions
How many of the 42 people in a group are employed students?

(1) 29 of the 42 people are employed.
(2) 24 of the 42 people are students.

OPEN DISCUSSION OF THIS QUESTION IS HERE: how-many-of-the-42-people-in-a-group-are-employed-students-128008.html
[Reveal] Spoiler: OA
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Re: Gmat prep [#permalink] New post 18 Apr 2010, 14:47
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You cannot solve this one with venn diagram (or it's not the best solution)

take a look at this table. you can see that the info given are not sufficient to solve the question. Answer is clearly E.
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Re: Gmat prep [#permalink] New post 05 Nov 2010, 03:11
Nice madeinafrica!!
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Re: How many of the 42 people in a group are employed students? [#permalink] New post 07 Jun 2014, 06:36
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In the venn diagram you must consider the people who are neither employed nor students also. No information provided about that, hence answer E.
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Re: How many of the 42 people in a group are employed students? [#permalink] New post 07 Jun 2014, 06:42
Expert's post
sandranjeim wrote:
How many of the 42 people in a group are employed students?

(1) 29 of the 42 people are employed.
(2) 24 of the 42 people are students.


The answer is straight E. Even when taken together we have:

{Total} = {Students} + {Employed} - {Both} + {Neither} --> we want to calculate: {Both}, # of employed students.

{42} = {24} + {29} - {Both} + {Neither} --> {Both} = 11 + {Neither}, since we don't know # of people who are neither employed nor students, we can not answer the question.

Answer: E.

OPEN DISCUSSION OF THIS QUESTION IS HERE: how-many-of-the-42-people-in-a-group-are-employed-students-128008.html
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Re: How many of the 42 people in a group are employed students?   [#permalink] 07 Jun 2014, 06:42
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