Data Sufficiency (DS) | Re: Is an integer n even? (1) n(n + 2) = even (2) n(n + 3) = even

S1) n(n+2) is even
If n= odd, then n+2 will also be odd, and odd * odd can never be even
Hence, n = even and n+2 is also even.


S2) n(n+3) is even
If n = odd, n+3 is even (since, odd + odd is even) hence n = odd;
But if n = even, n+3 = odd, then n(n+3) is even, hence n = even
SO S1) is suff.

Answer A

Statistics : Posted by scrantonstrangler • on 14 Jun 2023, 06:00 • Replies 1 • Views 82

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