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    Question

    Find the wrong number in the given number series.

    21, 32, 45, 60, 75,

    96
    A 75 Correct Answer Incorrect Answer
    B 96 Correct Answer Incorrect Answer
    C 21 Correct Answer Incorrect Answer
    D 60 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    4 × 5 + 1 = 21 5 × 6 + 2 = 32 6 × 7 + 3 = 45 7 × 8 + 4 = 60 8 × 9 + 5 = 77 9 × 10 + 6 = 96 Therefore, 77 should come in place of 75.

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