# What was The Average Marks of The Remaining Students of the Class :

In a History examination, the average for the entire class was 80 marks. If 10% of the students scored 95 marks and 20% scored 90 marks. What was the average marks of the remaining students of the class:

- 65.5
- 85
- 75
- None of these

**Answer: (3) 75**

**Explanation:-
**Let the number of students in the class be 100 and the average marks of remaining students be X

According to the question,

Then, 95 x 10 + 90 x 20 + 70 x X = 100 x 80

950 + 1800 + 70 X = 8000

70 X = 8000 – 2750

70 X = 5250

X = 5250/70

X = 75%

Then, the average marks of the remaining students of the class is 75.

Hence, the answer is (3) 75.