Question

The class mark of the class 90-120 is:

(A) 90

(B) 105

(C) 115

(D) 120

Answer 1

(B) 105

Explanation:

Class mark = (upper limit + lower limit) / 2

Then,

Class mark = 120 + 90 / 2

= 210 / 2

= 105.

Hence, option (B) is the correct answer.