Question

    Nine numbers are arranged in decreasing order. The

    average of the first eight numbers is 50, and the average of the last eight numbers is 45. 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

    Solution

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