8 student in a class obtained 60% ,3 obtain 75%,2 obtained 80% and 7 obtained 45% in a class test . what is the average marks?
Answers
Answered by
0
Answer:
Step-by-step explanation:
60+75+80+45/8+3+2+7=
260/20=13%
13/260×100=
50
Answered by
17
Answer:
The average mark is 59%
Step-by-step explanation:
Total number of students: 20
(8 * 60 + 3 * 75 + 2 * 80 + 7 * 45) / 20 = (480 + 225 + 160 + 315) / 20 = 1180 / 20 = 59
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