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Are both of the integers \(x\) and \(y\) divisible by \(3?\)

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by Vincen » Fri May 28, 2021 6:42 am

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Are both of the integers \(x\) and \(y\) divisible by \(3?\)

(1) \(x + y\) and \(x - y\) are divisible by \(3.\)
(2) \(x^2\) and \(y^2\) are divisible by \(9.\)

Answer: D

Source: GMAT Prep
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