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    Question

    Ten numbers are arranged in decreasing order. The

    average of the first nine numbers is 55, and the average of the last nine numbers is 50. What is the difference between the first and the last number?
    A 25 Correct Answer Incorrect Answer
    B 35 Correct Answer Incorrect Answer
    C 45 Correct Answer Incorrect Answer
    D 40 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

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