"A student obtained 60, 75 and 85 marks respectively in three monthly examinat
Channel: Doubtnut
Date: 05/04/2020

"A student
 obtained 60, 75 and 85 marks respectively in three monthly examinations in
 Physics and 95 marks in the final examination. The three monthly examinations
 are of equal weightage whereas the final examination is weighted twice as
 much as a monthly examination. His average marks in Physics are
(a)
 78.75 (b) 79 (c) 82 
 (d) 85"