Multiple choice

Find out the wrong number in the series. 25, 31, 39, 51, 70, 95

  1. 39

  2. 51

  3. 25

  4. 70

  5. 49

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

The pattern follows alternating additions of 6, 8, 12, 18, 24... where each increment increases by 2, then 4, then 6, then 6. At position 4, the value should be 51 + 18 = 69, not 70. This makes 70 the wrong number breaking the pattern.