Question

    The average of n numbers is 60. If each of 55% of the

    numbers is increased by 14 and each of the remaining numbers is decreased by 12, then the new average of the numbers will be
    A 68 Correct Answer Incorrect Answer
    B 62.3 Correct Answer Incorrect Answer
    C 67.5 Correct Answer Incorrect Answer
    D 63.4 Correct Answer Incorrect Answer

    Solution

    Avg. = 60 + ((55 x 14 - 45 x 12)/100) = 60 + 2.3 = 62.3

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