SAT, 01.03.2021 16:30 koryhudson8124

The pass result of 50 students who took up a class test is given below: marks 40 50 60 70 80 90 no. Of students 8 10 9 6 4 3 if the average mark of all 50 students was 51.6 find out the average mark of the students who failed

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