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SSC PYQTier 1 2025

SSC CGL – Combined Graduate Level Examination · Question 24

Identify the odd one: 3, 5, 7, 11, 13, 17, 19, 21

  1. 21
  2. 13
  3. 11
  4. 19
Show answer & explanation

Answer: (A) 21

Explanation

All others are prime; 21 = 3 × 7.