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    Question

    In each of the following number series, one term is

    wrong. Find the wrong term. 7, 10, 18, 33, 58, 92, 140
    A 58 Correct Answer Incorrect Answer
    B 140 Correct Answer Incorrect Answer
    C 92 Correct Answer Incorrect Answer
    D 7 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Check the differences: 10 - 7 = 3 18 - 10 = 8 33 - 18 = 15 58 - 33 = 25 92 - 58 = 34 140 - 92 = 48 The pattern should be: +3, +8, +15, +24, +35, +48 These are: 2┬▓ - 1 = 3 3┬▓ - 1 = 8 4┬▓ - 1 = 15 5┬▓ - 1 = 24 6┬▓ - 1 = 35 7┬▓ - 1 = 48 So, 33 + 24 = 57, not 58 57 + 35 = 92 92 + 48 = 140 So the correct series should be: 7, 10, 18, 33, 57, 92, 140 Hence, 58 is the wrong term.

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