Just 66% marks

We all know a student should not be taught as a single person.
A student need be taught among other 39 students.
Marks are relative in class in that area for that academic year.
Then how can a student get more than 66% marks?
A student need get marks between 35% and 66%.
So if a student is getting more than 66% marks,then teacher/s will be mafia(just social four) than truth(social four to their system four each).
Govt and education dept both need take steps to solve mafia in teaching at first.
Then other mafias will be solved.