RRB Group D 19-Sep-2018 Shift 1 Solved Paper

Question : 65 of 100

Marks: +1, -0

If the number x3208 is divisible by 3, what can be the face value o f x?

Solution:

A number is divisible by 3
when sum of digit is divisible by 3

\;{x+3+2+0+8}/{3}=\;{x+13}/{3}

from option putting

{x}=5

\;{5+13}/{3}=\;{18}/{5}=6

So, answer is 5 .

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