1.  (935421 x 625) = ?
A. 584649125
B. 575648125
C. 585628125
D. 584638125

Answer: Option D

Explanation:

935421 x 625 = 935421 x 54 = 935421 x 10 4
2

= 935421 x 104 = 9354210000
24 16

= 584638125