The average of 10 numbers was calculated as 48. It was later discovered that while calculating the average, one number, 82, was incorrectly entered as 28. What is the correct average of these numbers?
- 42.6
- 48.5
- 53.4
- None of these
Explanation
Average of 10 numbers = 48
Total sum of 10 numbers = 48 * 10 = 480
Wrong number entered = 28
Correct number = 82
Difference = 82 - 28 = 54
So correct sum = 480 + 54 = 534
Correct average = 534 / 10 = 53.4
Last verified on 24-10-2026
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