Question

Let p, q and r be distinct integers, that are odd and positive. Which of the following must
be true?
1) (p + q) (q + D) (r - p) is negative
2) (p + q) (q + r) (r + p) is even
3) (q - p) (q - ) (p - r) is positive
4) (p + q) (q + r) (r + p) is odd​

Answer 1

Answer:

1 is the true answer it is a negative