Question

The average score on a recent test was 75%. One of the students earned a grade of 93% while another student earned a grade of 78%. A total of 23 students took the test. Find the average grade of the remaining 21 students.

Answer 1

The total score for 23 students=23x75=1725
less 2 students with 78 and 93
=1725 -(93+78)
=1554
average for 21 student=1554/21=74%

Answer 2

Total marks of the 23 students = 23 * 75 = 1725
Total marks of that two students = 93 + 78 = 171

So, remaining marks will be: 1725 - 171 = 1554

Their average would be: 1554 / 21 = 74%

So, your final answer is 74%

Hope this helps!