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by blaster » Tue Jun 07, 2011 9:28 pm
Is |x|=|y|?
(1) x -y = 6
(2) x +y = 0

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by sivaelectric » Tue Jun 07, 2011 9:33 pm
IMO B
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by cans » Tue Jun 07, 2011 9:33 pm
|x|=|y| ??
A) x-y=6. Take x=9,y=3 |x| is not equal to |y|
x=3,y=-3 |x| = |y|
insufficient.
b)x+y = 0
x=-y
|x|=|Y|
Sufficient.
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by kruthika » Tue Jun 07, 2011 11:03 pm