Question

    The average of 9 numbers is 27. One number 45 is

    replaced by 33. Find the new average.
    A 29(2/3) Correct Answer Incorrect Answer
    B 25(9/3) Correct Answer Incorrect Answer
    C 25(2/3) Correct Answer Incorrect Answer
    D 21(5/3) Correct Answer Incorrect Answer

    Solution

    ATQ,Old sum = 9 Ɨ 27 = 243 New sum = 243 āˆ’ 45 + 33 = 231 New average = 231/9 = 77/3 = 25 (2/3)

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