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    Question

    The average of 20 results is 15 and the average of other

    25 results is 24. What is the average of all the results?
    A 40 Correct Answer Incorrect Answer
    B 22 Correct Answer Incorrect Answer
    C 39 Correct Answer Incorrect Answer
    D 20 Correct Answer Incorrect Answer

    Solution

    The correct answer is D

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