The average of marks of 28 students in Mathematics = 50
Total marks of 28 students = 28 ├Ч 50 = 1400
When 8 students left , The average of marks of 20 students = 55
Total marks of 20 students = 20 ├Ч 55 = 1100
тИ┤ Total marks of 8 students = 1400 тАУ 1100 = 300
тИ┤ Average = 300 ├╖ 8 = 37.5
Answered :- 2023-09-07 09:12:33
Academy