Railways PYQCBT 1 2020

RRB NTPC · Question 93

Four numbers have been given, out of which three are alike in some manner and one is different. Select the number that is different from the rest.

  1. 34

  2. 16

  3. 25

  4. 29

Show answer & explanation

Answer: (D) 29

Explanation

34, 16 and 25 are composite; 29 is a prime number, so it is different.