In a class A of 25 students, 20 passed in first class; in another class B of 30 students, 24 passed in first class. In which class was a greater fraction of students getting first class?

In a class-X of 30 students, 24 passed in first class , in another class Y of 35 students, 28 passed in first class. In which class was the percentage of students first class more?

How many students passed in first class ? Statements: I. 85% of the students who appeared in examination have passed either in first class or in second class. II. 750 students have passed in seond class. III. The number of students who passed in first class is 28% of those passed in second class.

There are 35 students in a biology class. If 10 students made grade A in the first test, what fraction of the students made grade A?

42% of the total number of student passed in a class test. How many students failed, if the total number of students in the class is 1450 ?

If the average weight of the class of students is 15 and the average weight of another class of students is 30, then the find the ratio of the students of the first class to the another class of 30 students when the average weight of both the classes is 25: