Question

If 1*548 is divisible by 3, which of the following digits can replace *?

(a) 0
(b) 2
(c) 7
(d) 9

Answer 1

(a) 0
Sum of the given digits = 1 + 5 + 4 + 8 = 18
Since 18 is a multiple of 3, the required digit is 0.