. smallest value of a and b are
If the number 357a25b is divisible by both 3 and 5
A. 0 and 6
B. 2 and 0
C. 5 and 1
D. 5 and 4
Best Answer
Sol: (b)
As the number 357a25b is divisible by 3 and 5 both, so the last digit must be 0 or 5 and sum of digits is divisible by 3.
In 357a25b, sum of digits
3 + 5 + 7 + a + 2 + 5 + b = 22 + a + b
Value of b must be 0 (smallest), so value of a is 2.
Related questions
