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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