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    Question

    The average of 12 numbers is 28. If one number 34 is

    replaced by 58, find the new average.
    A 30 Correct Answer Incorrect Answer
    B 77 Correct Answer Incorrect Answer
    C 40 Correct Answer Incorrect Answer
    D 50 Correct Answer Incorrect Answer

    Solution

    ATQ, Increase in sum = 58 - 34 = 24 Increase in average = 24/12 = 2 New average = 28 + 2 = 30

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