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**