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    Question

    Select the correct option that will replace the question

    mark in the following series. 63, 72, 81, ?, 99, 108, 117
    A 92 Correct Answer Incorrect Answer
    B 91 Correct Answer Incorrect Answer
    C 90 Correct Answer Incorrect Answer
    D 93 Correct Answer Incorrect Answer

    Solution

    63 + 9 = 72 72 + 9 = 81 81 + 9 = 90 90 + 9 = 99 99 + 9 =108 108 + 9 = 117

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