Multiple choice

In the following number series only one number is wrong. Find out the wrong number. 8 12 24 46 72 108 216

  1. 12

  2. 108

  3. 46

  4. 8

  5. 216
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Differences: 4, 12, 22, 26, 36, 108. Pattern: +8, +10, +4, +10... The error is at 72 (gives difference 26 instead of expected +12 to continue +8, +10, +12). Should be 46+18=64. So 46 is wrong.

Keep practicing — related questions