Question
Average of 10 positive integers is calculated as 36. It
was later found that while calculating the average, someone mistakenly entered 15 instead of 35. Find the correct average.Solution
Incorrect sum of ten numbers = 36 × 10 = 360 Correct sum = 360 − 15 + 35 = 380 So, correct average = 380 ÷ 10 = 38
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