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If \(x\) is a positive integer, is \(x^2 - 1\) divisible by \(24?\)

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by M7MBA » Sun Jan 17, 2021 8:44 am

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If \(x\) is a positive integer, is \(x^2 - 1\) divisible by \(24?\)

(1) \(x\) is odd.
(2) \(x\) leaves a remainder when divided by \(3.\)

Answer: C

Source: e-GMAT
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