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    Question

    Find the wrong number in the given number series.

    78, 66, 51, 39, 20, 12
    A 12 Correct Answer Incorrect Answer
    B 78 Correct Answer Incorrect Answer
    C 39 Correct Answer Incorrect Answer
    D 20 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, 78 – 12 = 66 66 – 15 = 51 51 – 12 = 39 39 – 15 = 24 24 – 12 = 12 24 will come in the place of 20.

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