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Perimeter-quick one

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Source: — Data Sufficiency |
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by kmittal82 » Wed Oct 06, 2010 2:25 am
Perimeter = 2(l+w)

Stmt1)

l - w = 15 => l = 15 + w

Perimeter = 2(15 + 2w) = 30 + 4w

W is unknown, so not sufficient

Stmt2)

l + w = 35
P = 2(L+w) = 2x35 - 70

Sufficient

Hence (B)
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