Question

1. Balu secured 75, 80 and 91 marks in physics, maths
and chemistry subjects respectively in an annual
examination which has the mentioned subjects only.
Find his average marks per subject.
(1) 82
(2) 84
(3) 86
(4) 88
(5) None of these​

Answer 1

Answer:

82

Step-by-step explanation:

You need to add the total Mark's and take the mean

Answer 2

Answer:

Find the sum of the marks, firstly

and the sum is 340, got it

Now the number of subjects is 4

Divide the total marks by 4

Total no. of marks/ Total number of subjects

= 340/4 = 85

Hence, the average is 85.