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    Question

    Average of 6 positive integers is calculated as 25. It

    was later found that while calculating the average, someone mistakenly entered 18 instead of 30. Find the correct average.
    A 27 Correct Answer Incorrect Answer
    B 26 Correct Answer Incorrect Answer
    C 28 Correct Answer Incorrect Answer
    D 29 Correct Answer Incorrect Answer

    Solution

    Incorrect sum of six numbers = 25 × 6 = 150 Correct sum = 150 − 18 + 30 = 162 So, correct average = 162 ÷ 6 = 27

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