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# A batch of cookies is divided among three jars. What

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Intern
Joined: 17 Aug 2008
Posts: 19

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17 Aug 2008, 18:33
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A batch of cookies is divided among three jars. What fraction of the cookies is placed in the third jar?

(1) 1/3 of the cookies are placed in the first jar, while 13 of the cookies are placed in the second jar.

(2) The jars contain a total of 36 cookies, and 30 of those are in the first two jars.

Ans: B (why not D)
Director
Joined: 12 Jul 2008
Posts: 513
Schools: Wharton

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17 Aug 2008, 18:42
chalven1 wrote:
A batch of cookies is divided among three jars. What fraction of the cookies is placed in the third jar?

(1) 1/3 of the cookies are placed in the first jar, while 13 of the cookies are placed in the second jar.

(2) The jars contain a total of 36 cookies, and 30 of those are in the first two jars.

Ans: B (why not D)

For future reference, please don't post OA in the first post.

(1) Insufficient.

x = total # of cookies

Third jar = x - (1/3)x - 13.

No idea what x is.

(2) Sufficient
36-30 = 6
Manager
Joined: 27 May 2008
Posts: 139

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17 Aug 2008, 22:09
I am unable to find result from A. Cz' total number of cookies can not be found out from A.

Intern
Joined: 17 Aug 2008
Posts: 19

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18 Aug 2008, 10:20
Hi zoinnk:

Thanks for your message. I won't post answers before in future posts. Regarding the question, I overlooked it and assumed that the cookies were equally divided.

Cheers.
Re: DS   [#permalink] 18 Aug 2008, 10:20
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