Question

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

    3, 5, 12, 38, 154,

    ?
    A 772 Correct Answer Incorrect Answer
    B 556 Correct Answer Incorrect Answer
    C 698 Correct Answer Incorrect Answer
    D 785 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, (3 X 1) + 2 = 5 (5 X 2) + 2 = 12 (12 X 3) + 2 = 38 (38 X 4) + 2 = 154 (154 X 5) + 2 = 772

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