GMAT PREP>??

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GMAT PREP>??

by dferm » Wed Mar 19, 2008 7:21 am
PLEASE HELP.......
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by ikant » Wed Mar 19, 2008 11:07 am
Ok the soulution is like this.

stmt 1 :: if x is odd then x^2 is also odd and this makes x^2 + 1 even which in turn makes the product even,

stmt 2:: all prime factors greater then 7. this means that x^2 is an odd no since it has only odd prime nos, which again allows you to get the answer,
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