Correct Answer - Option 3 : 63
Given:
The average marks of 42 students in an examination = 64
Formula Used:
Average of a given Terms/Series/Values = (Sum of the given Terms/Series/Values) / (Number of Terms/Series/Values)
Calculation:
Total Marks = 42× 64 = 2688
⇒ Later it was found that the marks of three students were misread as 72, 58, and 44 instead of the actual marks
64, 42, and 26 respectively
∴ the Actual Average is = {2688−(72+58+44)+(64+42+26)}/42 = 63