mock test

In a particular batch of Pioneer career Kolkata there are 4 boys and certain number of girls. In every mock test only 5 students including at least 3 boys can appear. If different group of students write the Mock exam everytime, if number of times test conducted is 66 then find the total number of students in the class.

What are the objectives of mock drill?

Which of the following is the objective of mock drill exercises?