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Guests at a recent party ate a total of fifteen hamburgers.

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Senior Manager
Joined: 24 Feb 2008
Posts: 348
Schools: UCSD ($) , UCLA, USC ($), Stanford
Guests at a recent party ate a total of fifteen hamburgers. [#permalink]

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29 May 2008, 20:11
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Guests at a recent party ate a total of fifteen hamburgers. Each guest who was neither a student nor a vegetarian ate exactly one hamburger. No hamburger was eaten by any guest who was a student, a vegetarian, or both. If half of the guests were vegetarians, how many guests attended the party?

(1) The vegetarians attended the party at a rate of 2 students to every 3 non-students, half the rate for non-vegetarians.

(2) 30% of the guests were vegetarian non-students.
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Director
Joined: 10 Sep 2007
Posts: 938

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29 May 2008, 21:41
7-t62475
Current Student
Joined: 28 Dec 2004
Posts: 3357
Location: New York City
Schools: Wharton'11 HBS'12

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30 May 2008, 05:08
i still havent figured out this one..yet...

anyone with a nice way of doing such problems???
Senior Manager
Joined: 24 Feb 2008
Posts: 348
Schools: UCSD ($) , UCLA, USC ($), Stanford

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30 May 2008, 09:02
Sorry, I didn't see the other thread.
It has the best possible explanation.
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Re: DS: hamburgers/vegetarians   [#permalink] 30 May 2008, 09:02
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