The average marks of a student in 4 subjects are 75. If the student obtained 80 marks in the fifth subject, then the new average is

(a) 72.5 (b) 76 (c) 77 (d) 77.5

The average marks of a student in 4 subjects are 75. If the student obtained 80 marks in the fifth subject, then the new average is

(a) 72.5 (b) 76 (c) 77 (d) 77.5

1 Answer

127 votes

Sum of marks in 4 subjects = 75

Sum of marks in 5 subjects = 300+80 =380.

New average =

127 votes

127