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    Question

    What should come in place of the question mark (?) in the following number series?

    4 5 12 39 160

    ?
    A 795 Correct Answer Incorrect Answer
    B 797 Correct Answer Incorrect Answer
    C 800 Correct Answer Incorrect Answer
    D 805 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    4 ×1+1= 5 5 ×2 +2= 12 12×3+3= 39 39 ×4+4= 160 160 ×5+ 5 = 805

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