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Re: If x and y are positive integers, is x even?
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19 Oct 2017, 07:32

C Statement 1 : Both must be even or both must be odd. X can be even or odd. Statement 2: y^x has to be odd. This means y is odd but x can be even or odd.

Combining 2 Y^x = odd so x^y has to be odd. This means x cannot be even. Hence C