Question

what is the class mark of class 35-45​

Answer 1

Answer:35-45

= 35+45/2

= 80/2

= 40


Step-by-step explanation

Answer 2

Answer:

class mark = ( lower limit + upper limit ) ÷ 2

=> (35 + 45)/2

=> 80/2

=> 40

class mark of 35 - 45 is 40