RRB Group D 15-Sep-2018 Shift 1 Solved Paper

A number is divisible by 3
if sum of digits of the number is a multiple of 3
So, x + 3 + 2 + 0 + 8 = x + 13
From the given option, only option (c) is satisfied
i .e. 5 + 13 = 18 is a multiple of 3