If n is a multiple of 5, and n=q p^2 (q times p squared), where p and q are prime numbers, which of the following must be a multiple of 25?
a) p^2
b) q^2
c) pq
d) p^2 q^2
e) p^3 q
Answer is D
a) p^2
b) q^2
c) pq
d) p^2 q^2
e) p^3 q
Answer is D
