Question

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

    12, 20, 36, ?, 132, 260

    A 72 Correct Answer Incorrect Answer
    B 68 Correct Answer Incorrect Answer
    C 64 Correct Answer Incorrect Answer
    D 66 Correct Answer Incorrect Answer
    E 76 Correct Answer Incorrect Answer

    Solution

    12 x 2 - 4 = 20 20 x 2 - 4 = 36 36 x 2 - 4 = 68 68 x 2 - 4 = 132 132 x 2 - 4 = 260

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