Question

In a room there are 20 students of different classes .the student of fifth , eighth and tenth class are in the room. if teacher ordered only 20 chocolates and there is fixed proportion of chocolates is given to the students of different classes. the proportion are the fifth class student get only half of chocolates , the eighth class students get only 2 chocolates each and the tenth class students get only 3 chocolates each

find the number of students of different classes?

Answer 1

which class it is
500 students were there in the room