Saturday, October 09, 2010

x > y > 0. If x and y are integers, is y even

    x > y > 0. If x and y are integers, is y even?
    (1) x - y = 1
    (2) 2x + y = 32








1. if x = 2, y = 1 y is odd
if x = 3, y = 2 y is even
Insufficient

2. 2x + y = 32
if x = 2, y = even
if x = 3, y = even
sufficient

Answer is B.

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