Multiple choice

In the following number series only one is wrong. Find out the wrong number. 37 47 52 67 87 112 142

  1. 47

  2. 52

  3. 67

  4. 87

  5. 112
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Pattern: 37 + 10 = 47, 47 + 5 = 52, 52 + 15 = 67, 67 + 20 = 87, 87 + 25 = 112, 112 + 30 = 142. The differences are 10, 5, 15, 20, 25, 30. The number 47 breaks the alternating pattern - differences should be 5, 10, 15, 20, 25, 30 (consecutive multiples of 5 starting from 5).

Keep practicing — related questions