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    Question

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

    following series? 5, 12, ?, 105, 430, 2161
    A 111 Correct Answer Incorrect Answer
    B 32 Correct Answer Incorrect Answer
    C 87 Correct Answer Incorrect Answer
    D 69 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    5 * 1 + 7 = 12

    12 * 2 + 8 = 32

    32 * 3 + 9 = 105

    105 * 4 + 10 = 430

    430 * 5 + 11 = 2161

    So, (?) = 32

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