Question
Average of 8 positive integers is calculated as 40. It
was later found that while calculating the average, someone mistakenly entered 22 instead of 38. Find the correct average.Solution
Incorrect sum of eight numbers = 40 × 8 = 320 Correct sum = 320 − 22 + 38 = 336 So, correct average = 336 ÷ 8 = 42
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