If x and y are integers, is x a positive integer?
(1) x∗|y| is a prime number.
(2) x∗|y| is a non-negative integer.
My Ans C.
St 1. This implies x*|y| is positive. As prime no. are always positive.
Now, x*|y| can be positive in two case: 1. when x & y both positve or when x&y both -ve.
Therefore, not sufficient.
St2: non-negative integer ===> 0 or positive.
st1 + st 2: x & y are non-zero as 0 is not a prime and x * y are positive.
Therefore, x is positive
Not convinced by OA. Please see my explanation
YOU CAN, IF YOU THINK YOU CAN