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Railways PYQCBT 1 2016

RRB NTPC · Question 34

If 234A is divisible by 9, find the value of the smallest natural number A? A. 5 B. 6 C. 7 D. 9

  1. D

  2. B

  3. A

  4. C

Show answer & explanation

Answer: (A) D

Explanation

A number is divisible by 9 if its digit sum is. 2 + 3 + 4 + A = 9 + A, so A = 0 or 9. The smallest natural number is 9.