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Railways PYQCBT 1 2016

RRB NTPC · Question 97

What is the minimum value of ‘Y’ for which 267Y2 is divisible by 3?

  1. 2

  2. 1

  3. 0

  4. 5

Show answer & explanation

Answer: (B) 1

Explanation

A number is divisible by 3 if its digit sum is. 2 + 6 + 7 + Y + 2 = 17 + Y; the smallest Y that makes this a multiple of 3 is 1 (17 + 1 = 18).