The correct option is B 51948
0 5 2
9 9 9
____________
(052 - 1) /
051 / (999 - 51)
051 / 948 ⇒51948
1. Add zero/zeroes to the left side of the multiplicand (52) so that the number of digits in both the given numbers becomes same.
2. Subtract 1 from 52 and write it on the left-hand side.
3. Subtract 51 from 999 and write it on the write hand side of 51 (999 - 51 = 948).
Thus 52 x 999 = 51948