121 x 5^4 = ? Choose the correct choice from the following choices
A) 75625
B) 68225
C) 72325
D) 71225
E) 72225

Rationale: explanation : 121 × 5 ^ 4 = 121 × ( 10 / 2 ) ^ 4 = ( 121 × 10000 ) / 16 = 7.5625 × 10000 = 75625 answer is a
Answer: A