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OG 11 Q109, Need Help

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Source: — Data Sufficiency |

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Re: OG 11 Q109, Need Help

by Ian Stewart » Tue Jul 29, 2008 7:21 am
gmattester wrote:"Are positive integers p and q both greater than n?
1)p-q is greater than n
2)q>p"


According to me answer should be 'C' but OG ans is 'E'. Can someone explain this.
The answer is definitely C- neither statement is sufficient, and with both, we know that n is negative (p-q is negative from (2), and p-q>n, from (1)) and p and q are positive, so sufficient.

Incidentally, my copy of the OG also lists the correct answer as C, not as E (though their solution is a bit different from mine).
For online GMAT math tutoring, or to buy my higher-level Quant books and problem sets, contact me at ianstewartgmat at gmail.com

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by gmattester » Wed Jul 30, 2008 5:31 am
Thanks Ian...........
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