Multiple choice

In each of the following number-series only one number is wrong. Find out that wrong number. 48 24 72 34 108 54

  1. 24

  2. 48

  3. 34

  4. 108

  5. None of these

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The correct answer is C. The pattern alternates: 48 ÷ 2 = 24, 24 × 3 = 72, 72 ÷ 2 = 36 (not 34), 36 × 3 = 108, 108 ÷ 2 = 54. The number 34 breaks the alternating division-by-2 and multiplication-by-3 pattern.