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    Question

    If average of first 12 numbers is (n тАУ 23) and the sum

    of remaining number is 925. Find the value of тАШnтАЩ, if the average of 22 numbers is тАШnтАЩ.┬а
    A 97.5 Correct Answer Incorrect Answer
    B 48 Correct Answer Incorrect Answer
    C 139 Correct Answer Incorrect Answer
    D 64.9 Correct Answer Incorrect Answer
    E 108 Correct Answer Incorrect Answer

    Solution

    According to the question, => 22n = 12 ├Ч┬а(n тАУ 23) + 925 => 22n - 12n = 925 тАУ 276 => n = 64.9

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