i+j is even in the following cases
a) i and j are even, b) i and j are odd <- we can answer here Yes here
In all other cases one is even and one is odd we can answer No
Thus, technically this q. doesn't require much solution, as we can select Yes/NO right away
st(1) i<10 can be even or odd, and we don't know about j, Not Sufficient (we can answer both Yes or No, depends on exact values of i and j)
st(2) i=j, these two integers can be even or odd. Sufficient to answer Yes, the resultant is even
b
romitvsingh wrote:If i and j are integers, is i + j an even integer?
1) i < 10
2) i = j