# Find Out the Correct Average.

The average marks obtained by a student in 6 subjects is 88. On subsequent verification it was found that the marks obtained by him in a subject was wrongly copied as 86 instead of 68. The correct average of the marks obtained by him is:

- 86
- 87
- 85
- 84

**Answer: (3) 85**

**Explanation:-
**The average marks obtained by a student in 6 subjects = 88

Then, the total marks obtained by a students in 6 subjects = 88 x 6

= 528

On subsequent verification it was found that the marks obtained by him in a subject was wrongly copied as 86 instead of 68.

Then, the correct sum of the marks = 528 – (86-68)

= 528 – 18

= 510

Then, The correct average of the marks obtained by him = 510/6

= 85

Hence, the answer is (3) 85.