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    Question

    The average of n numbers is 65. If each of 54% of the

    numbers is increased by 15 and each of the remaining numbers is decreased by 10, then the new average of the numbers will be
    A 68 Correct Answer Incorrect Answer
    B 66.5 Correct Answer Incorrect Answer
    C 67.5 Correct Answer Incorrect Answer
    D 63.4 Correct Answer Incorrect Answer

    Solution

    Avg. = 65 + ((54 x 15 - 46 x 10)/100) = 65 + 3.5 = 68.5

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