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x+y?

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x+y?

by crackgmat007 » Sun May 10, 2009 7:32 pm
How is the answer of the below problem C? The lines do not appear parallel and added to that there is no info in the problem about this. IMO -E. Am I missing something?
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Source: — Data Sufficiency |
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by Sunshine85 » Mon May 11, 2009 12:38 am
Answer is C

The figure shows a quadrilateral.

Angles of Quadrilateral are 180-x, 180-y, 180-z, 180- w and the sum of all the interior angles of Quadrilateral is 360.

Which gives x+y = 360 - (w+z)

So both statements put together sufficient.
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by cubicle_bound_misfit » Mon May 11, 2009 8:08 pm
Thanks sunshine,

this one was bugging me.
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