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

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Intern
Joined: 11 Apr 2010
Posts: 16

Kudos [?]: 58 [0], given: 18

How many of the 42 people in a group are employed students? [#permalink]

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17 Apr 2010, 05:34
00:00

Difficulty:

5% (low)

Question Stats:

81% (00:26) correct 19% (00:15) wrong based on 172 sessions

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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

Kudos [?]: 58 [0], given: 18

Current Student
Affiliations: ?
Joined: 20 Jul 2009
Posts: 191

Kudos [?]: 39 [2], given: 6

Location: Africa/Europe
Schools: Kellogg; Ross (\$\$); Tuck

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18 Apr 2010, 15:47
2
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1
This post was
BOOKMARKED
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.
Attachment:

gmatDS.png [ 3.66 KiB | Viewed 9458 times ]

Kudos [?]: 39 [2], given: 6

Intern
Joined: 07 Sep 2010
Posts: 17

Kudos [?]: 4 [0], given: 8

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05 Nov 2010, 04:11

Kudos [?]: 4 [0], given: 8

Intern
Joined: 24 Mar 2014
Posts: 21

Kudos [?]: 8 [2], given: 16

Re: How many of the 42 people in a group are employed students? [#permalink]

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07 Jun 2014, 07:36
2
KUDOS
In the venn diagram you must consider the people who are neither employed nor students also. No information provided about that, hence answer E.

Kudos [?]: 8 [2], given: 16

Math Expert
Joined: 02 Sep 2009
Posts: 41885

Kudos [?]: 128723 [1], given: 12182

Re: How many of the 42 people in a group are employed students? [#permalink]

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07 Jun 2014, 07:42
1
KUDOS
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.

OPEN DISCUSSION OF THIS QUESTION IS HERE: how-many-of-the-42-people-in-a-group-are-employed-students-128008.html
_________________

Kudos [?]: 128723 [1], given: 12182

Re: How many of the 42 people in a group are employed students?   [#permalink] 07 Jun 2014, 07:42
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