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# A business school club, Friends of Foam, is throwing a party

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Senior Manager
Joined: 07 Jan 2008
Posts: 398

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A business school club, Friends of Foam, is throwing a party [#permalink]

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19 Jun 2008, 05:23
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A business school club, Friends of Foam, is throwing a party at a local bar. Of the business school students at the bar, 40% are first year students and 60% are second year students. Of the first year students, 40% are drinking beer, 40% are drinking mixed drinks, and 20% are drinking both. Of the second year students, 30% are drinking beer, 30% are drinking mixed drinks, and 20% are drinking both. A business school student is chosen at random. If the student is drinking beer, what is the probability that he or she is also drinking mixed drinks?

A. 2/5
B. 4/7
C. 10/17
D. 7/24
E. 7/10

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Manager
Joined: 21 Mar 2008
Posts: 79

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20 Jun 2008, 22:54
This question's been discussed. I don't know how to link to these discussions.
But http://www.deltacourse.com/questions/512341ZF.asp has the discussion and answer.

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Re: PS: %   [#permalink] 20 Jun 2008, 22:54
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