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    Question

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

    following series? 10, 11, 15, 31, 95, ?
    A 351 Correct Answer Incorrect Answer
    B 299 Correct Answer Incorrect Answer
    C 379 Correct Answer Incorrect Answer
    D 240 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    10 + 4⁰ = 11 11 + 4¹ = 15 15 + 4² = 31 31 + 4³ = 95 95 + 4⁴ = 351

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