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GmatPrep - PS

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Re: GmatPrep - PS

by Sunny22uk » Thu Aug 21, 2008 6:46 pm
varmaskarma wrote:I got a split between A and E which wont go away no matter how much i plugged in. Could someone please explain to me why the OA is E.
3x/2 is even if you substitute x=4
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by sumithshah » Thu Aug 21, 2008 8:23 pm
Heres a simpler way :

For E :

X is even - so X^2 is even and ((even)^2) / 2 is always even.
Now, 3*even = even and even + 1 is always odd

So no need to substitute.
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by varmaskarma » Thu Aug 21, 2008 8:42 pm
Thanks guys!
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by vishubn » Thu Aug 21, 2008 8:45 pm
It would be of great help if someone plugin or show how each option is elliminated before choosing E

thabks in advance

Vishu
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