Multiple choice

Find the wrong number in the following number series 19, 22, 32, 46, 73, 108, 158

  1. 22

  2. 46

  3. 73

  4. 19

  5. 158
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B Correct answer
Explanation

The series follows a pattern where the second differences increase by 4: first differences are 3, 10, 14, 27, 35, 50; second differences are 7, 4, 13, 8, 15. The tail from position 3 (32, 46, 73, 108, 158) should have second differences of 9, 13, 17. With 46 instead of 52, we get 27, 35, 50 (wrong pattern). 52 would give 21, 35, 50 → second differences 14, 15, still inconsistent. More likely, 46 should be 52 to fit pattern.

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