"The average marks of a student in 4 subjects is 75. If the student obtained 80 m
Channel: Doubtnut
Date: 2020-04-05

"The average
 marks of a student in 4 subjects is 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"