Math, asked by rajnivig81, 7 months ago

The class-mark of the class 80 - -90 is
(a) 75
(b) 80
(c) 85

Answers

Answered by riya15042006

2

Answer:

The answer is c) 85

Step-by-step explanation:

Class Mark = upper limit + lower limit ÷2

= 90 + 80 ÷ 2

= 170 ÷ 2

= 85

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