mals24 is entirely correct that you will never, ever see such a question on a real GMAT. In real GMAT Data Sufficiency, you can never answer the question in the stem without more information. If you think you can, you've misunderstood the question. You always need at least one of the statements. That said, you may find the occasional question in test prep books that does not observe this rule, but don't take that to mean anything about the real thing.

ritula wrote:The question is as under:
For integers x and y , x=y/6 +1 . Is xy even?

(1) y+1/5 =x
(2) y/x is not odd

Explanation is y=6x-6
xy=6x^2-6x
Becasue x is an integer, 6x^2-6x is always even.

The OA was D.

Yes, I agree that you can answer this without needing either of the statements- y is clearly divisible by 6, so y must be even, and therefore xy must be even. So this is not a well-designed question. Where did you find it?