Question

The decimal representation of a rational number p/q is a terminating decimal only if for non-negative integers m and n, prime factors of q are of the form

(A) 2^m x 3ⁿ
(B) 3^m x 5ⁿ
(C) 3ⁿ x 7ⁿ
(D) 2^m x 5ⁿ

Answer 1

Correct answer is (D) 2^m x 5ⁿ