there are 50 students in the class. The average marks of 10 failed students is 25 the total marks secured by entire class is 2810.compute the average marks of successful candidates.
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Answer:
64 Marks
Explanation:
Total no. Of students = 50
Total marks secured by failed students= no.of failed students * average marks of failed students
= 10*25
=250
Total marks of successful students = total marks of all students - total marks of failed students
= 2810-250
= 2560
Average marks of successful students=
Total marks of successful students
÷
No. Of successful students
= 2560÷40
=64 Marks
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