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What is the perimeter of a parallelogram ?

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Source: — Data Sufficiency |
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by bharathh » Mon Sep 07, 2009 6:38 pm
IMO A

Perimeter of a ||gram is 2x+2y where x and y are the sides.

Statement 1 gives you x+y . So 20 is 2x+2y. Sufficient

Can't think of any way to factor statement 2. Insufficient
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by woo » Wed Sep 09, 2009 4:58 am
I agree that the answer is A

But I have a different opinion about the second condition. There is a pair of integers that satisfies the condition 2: 4, 6.

But x and y don't have to be integers.
It could be that x=1 and y=sqr root 51.

Therefore B is not sufficient.

IMO A
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