Multiple choice

In the following number series only one number is wrong. Find out the wrong number. 8, 15, 29, 39, 56, 75, 98

  1. 15

  2. 39

  3. 29

  4. 56

  5. 75
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C Correct answer
Explanation

The pattern follows the sum of consecutive odd numbers: 8+7=15, 15+13=28, 28+11=39, 39+17=56, 56+19=75, 75+23=98. The odd number sequence 7, 13, 11, 17, 19, 23 has a pattern error at position 3 where 11 appears instead of a continuing pattern. If 29 were correct, the pattern would need different logic.

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