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# Tricky#1

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Director
Joined: 04 Jan 2008
Posts: 818

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13 Apr 2009, 03:27
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The average of x, y, and z is one-third greater than x. The sum y + z is what percent greater than x?

A) 50

B) 100

C) 200

D) 300

E) 400

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SVP
Joined: 04 May 2006
Posts: 1773
Schools: CBS, Kellogg

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13 Apr 2009, 03:43
nitya34 wrote:
The average of x, y, and z is one-third greater than x. The sum y + z is what percent greater than x?

A) 50

B) 100

C) 200

D) 300

E) 400

(x+y+z)/3 = 4/3*x ->y+z=3x, so y+z =300% of x

D
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Intern
Joined: 25 Dec 2008
Posts: 18
Schools: HBS, Stanford

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13 Apr 2009, 03:54
Since the question is asking "The sum y + z is what percent greater than x?"

The answer should be 200% since 3x is 200% greater than x.
SVP
Joined: 04 May 2006
Posts: 1773
Schools: CBS, Kellogg

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13 Apr 2009, 04:00
DaveGG wrote:
Since the question is asking "The sum y + z is what percent greater than x?"

The answer should be 200% since 3x is 200% greater than x.

You are right! I like this kind of trap. Thanks

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

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Re: Tricky#1 &nbs [#permalink] 13 Apr 2009, 04:00
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