If x and y are positive integers, then xy - y is Choose the correct choice from the following answers.
A) Always odd B) Odd whenever y is odd C) Odd whenever x+y is even D) Even whenever y is odd E) It cannot be determined
x and y are positive integers, then xy - y..   Let's take even as 4 and odd as 5.   IMO option A is correct answer..   If you consider your fourth scenario, that turns out to be even.   Hence option Odd whenever y is odd should be correct.
<result>B</result>
If x and y are positive integers, then xy - y is