What is the class mark of the class `100 - 190` ?

Choose the correct alternative for each of the following questions : What is the class mark of the class 10-100?

What is the class mark of the class 80-130?

The class mark of the class 150 - 170 is

The class mark of the class 100-120 is

The class mark of the class 100-120 is

Choose the correct atternative answer for each of the following question: What is the class mark of the class 30-40 ?

Find the class mark of the class 10 -20.

What is the class mark of class 25-35?

Choose the correct alternative answer for cach of the following question: What is the class mark of the class 25-30?

Class mark of a class is