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    Question

    Select the number from among the given option that can

    replace the question mark (?) in the following series. 17, 18, 22, 31, 47, 72, ?
    A 101 Correct Answer Incorrect Answer
    B 108 Correct Answer Incorrect Answer
    C 112 Correct Answer Incorrect Answer
    D 117 Correct Answer Incorrect Answer

    Solution

    17 + 1² = 18 18 + 2² = 22 22 + 3² = 31 31 + 4² = 47 47 + 5² = 72 72 + 6² = 108

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