Question

    4, 9, 35, 159, 951,

    6931 Find the wrong number in the given number series 
    A 1440 Correct Answer Incorrect Answer
    B 3 Correct Answer Incorrect Answer
    C 240 Correct Answer Incorrect Answer
    D 9 Correct Answer Incorrect Answer
    E none of these Correct Answer Incorrect Answer

    Solution

    ATQ, 2! + 2! = 4 3! + 3! = 12 4! + 4! = 48 5! + 5! = 240 6! + 6! = 1440 7! + 7! = 5040 Therefore, 12 should come in place of 9.

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