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    Question

    Find the wrong number in the series. 5,

    12, 23, 38, 57, 80, 107
    A 12 Correct Answer Incorrect Answer
    B 23 Correct Answer Incorrect Answer
    C 5 Correct Answer Incorrect Answer
    D 57 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Pattern:

    +7, +11, +15, +19, +23, +27

    (Correct series: 5, 12, 23, 42, 65, 92, 121)

    23 → wrong, should be 23 → 12 + 11 = 23 ✔, but next term violatespattern.

    Actually, 23 is incorrect as it breaks the consistent increment.

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