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# GmatPrepTest2-Question5

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Manager
Joined: 24 Sep 2008
Posts: 189

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22 Feb 2009, 15:54
Crazy for Quant!

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22 Feb 2009, 17:43
Here is my approach.......

It is given that there are 23 cent costing pencil and 21 cent costing pencil.

From stmt 1, it given that there are 6 pencils in total. From here we cannot say how many 23 cent pencils are there. It can range from 1 to 6. So insufficient.

From stmt 2, it is given the total cost pencils is 130. This means 23x + 21y = 130. Hum one eq and two variables......Is it cannot solve? : Wait a minute......Can we not figure out some random guesses. We should know that here x and y are integers since they represent the number of pencils of each cost.

So we can have at the max 4 - 23 cents costing pencils. So the ans for x will be such that 1<=x<= 4 and 130-23x is divisible by 21. definitely we can find the value of x. Hence sufficient.

IMO B.

--== 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.
Re: GmatPrepTest2-Question5   [#permalink] 22 Feb 2009, 17:43
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# GmatPrepTest2-Question5

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