(935421 x 625) = ?

A. 575648125

B. 584638125

C. 584649125

D. 585628125

E. None of these

Answer: Option B

Solution(By Examveda Team)

$$\eqalign{ & 935421 \times 625 \cr & = 935421 \times {5^4} \cr & = 935421 \times {\left( {\frac{{10}}{2}} \right)^4} \cr & = \frac{{935421 \times {{10}^4}}}{{{2^4}}} \cr & = \frac{{9354210000}}{{16}} \cr & = 584638125 \cr} $$