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anantbhatia
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For positive integer k, is the expression (k + 2)(k^2 + 4k + 3) divisible by 4?
(1) k is divisible by 8.
(2) (k + 1)/3 is an odd integer.
[spoiler]OA: A[/spoiler]
PS: Earlier, I thought that the OA was incorrect, but while posting my solution (I thought it shd have been D), I realized the mistake I had made and hence the correction.
(1) k is divisible by 8.
(2) (k + 1)/3 is an odd integer.
[spoiler]OA: A[/spoiler]
PS: Earlier, I thought that the OA was incorrect, but while posting my solution (I thought it shd have been D), I realized the mistake I had made and hence the correction.
Last edited by anantbhatia on Thu Oct 21, 2010 12:55 pm, edited 1 time in total.
