New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    Find the wrong number, in the given number series.

    2, 5, 10, 17, 26, 39, 52
    A 39 Correct Answer Incorrect Answer
    B 5 Correct Answer Incorrect Answer
    C 52 Correct Answer Incorrect Answer
    D 26 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Check the differences:

    5 - 2 = 3

    10 - 5 = 5

    17 - 10 = 7

    26 - 17 = 9

    39 - 26 = 13

    52 - 39 = 13

    The pattern should be: +3, +5, +7, +9, +11, +13

    But here after 26, we get 39 (+13) instead of 26 + 11 = 37

    Wrong number: 39

    Correct number: 37

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