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    Question

    69 73 64 80 ?

    91
    A 85 Correct Answer Incorrect Answer
    B 87 Correct Answer Incorrect Answer
    C 89 Correct Answer Incorrect Answer
    D 91 Correct Answer Incorrect Answer

    Solution

    Pattern of this series:
    + 22 , – 32 , + 42 , – 52 , + 62

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