Question

Class mark of size 120-150 is

Answer 1

Answer:

135 is the answer

hope you will understand my friend

Answer 2

Step-by-step explanation:

We know that, the average of upper limit and lower limits is called class mark.

So the class mark of 120 - 150 is

                             $\frac{120+150}{2}$     =     135

Hence, 135 is the class mark of size 120 - 150 (Ans)