Question

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

    2                              5                              10                           ?                              26

    A 16 Correct Answer Incorrect Answer
    B 12 Correct Answer Incorrect Answer
    C 15 Correct Answer Incorrect Answer
    D 18 Correct Answer Incorrect Answer
    E 17 Correct Answer Incorrect Answer

    Solution

    12 + 1 = 2 22 + 1 = 5 32 + 1 = 10 42 + 1 = 17 52 + 1 = 26

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