In a class of 50 students 10 have failed and their average of marks is 2.5 . The total marks secured by the entire class were 281. Find the average marks those who have passed.

In a class of 50 students 10 have failed and their average of marks is

1.	In a class of 50 students 10 have failed and their average of marks is 2.5 . The total marks secured by the entire class were 281. Find the average marks those who have passed.
Answer» SOLUTION :GIVEN: N = 50, Failed Students = 10 Mean MARKS ofthose who failed = `2.5` Total marks secured by the entire class = 281 Total marks obtained by those who have PASSED = 281 - 25 = 256 Average marks obtained by those who have passed = `(256)/40 = 6.4` Average marks obtained by those who have passed = `6.4`.