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by CITI29 » Sun Jul 13, 2008 4:20 pm
If n and k are positive integers, is n + k > 2 n ?
(1) k > 3n
(2) n + k > 3n
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Source: — Data Sufficiency |
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by sethids » Mon Jul 14, 2008 8:32 am
From the question stem, is n + k > 2n can be simplified to: is k > n (subtracting n from both sides)

Statement 1: k > 3n. Therefore k must be greater than n. Sufficient
Statement 2: n + k > 3n. This can be simplified to k > 2n. Therefore k must be greater than n. Sufficient.

Hence D is the answer.
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