Question

What least value should be given to * so that the number 6342*1 is divisible by 3?

(a) 0
(b) 1
(c) 2
(d) 3

Answer 1

(c) 2
Sum of the given digits = 6 + 3 + 4 + 2 + 1 = 16
We know that multiple of 3 greater than 16 is 18.
∴ 18 − 16 = 2
Therefore, the smallest required digit is 2.