Multiple choice

In the following number series, a term is wrong. Find the wrong term in the following number series. 7 25 88 367 1825 11131

  1. 11131

  2. 367

  3. 1825

  4. 88

  5. 7
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C Correct answer
Explanation

The series 7, 25, 88, 367, 1825, 11131. Pattern: 7 × 1 = 7, 7 × 2 + 11 = 25, 25 × 3 + 13 = 88, 88 × 4 + 15 = 367, 367 × 5 + 17 = 1852. But we have 1825, which is 367 × 5 - 10. The term 1825 breaks the pattern of adding consecutive odd numbers (11, 13, 15, 17). The correct term should be 1852.

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