DeeptiM wrote:

I have the same answer explanation but somehow part C didnt make sense to me..

Given is 2 * (X/Y) is integer

In case, X/Y is not integer but still the above fact is true=> Only possible when Y=2 => But this violated Statement 2.

If Y = Even (i.e 2) Then the constant 2 already extra available, can cancel the 3 in denominator. and X may or may not be a multiple of 2. Thus, we cannot say whether X/Y is integer or not.

When Y is Odd. Take Y=3.

Now, 2*(X/3) Can be an integer when X is a multiple of 3, which will cancel the 3 in denominator.

or we can write X= aY, where a is a constant integer.

Thus X/Y is an integer.

Hope clear.