23. Two classes of students A and B with average marks of 25 respectively And 40. The average marks of both classes is 30 Gaya. What is the ratio of students in class A and B?

Two classes M and n have average marks 25 and 40 respectively, the overall average obtained is 30. The ratio of the students in the class M and N is

In a class of 100 students, there are 70 boys whose average marks in a subject is 75. If the average marks of the complete class is 72, then what is the average of the girls ?

In a class of 100 students, there are 70 boys whose average marks in a subject is 75. If the average marks of the complete class is 72, then what is the average of the girls ?

In a class of 100 students, there are 70 boys whose average marks in a subject are 75.If the average marks of the complete class is 72. then what is the average of the girls?

In a class of 100 students there are 70 boys whose average marks in a subject are 75. If the average marks of the complete class is 72, then what is the average of the girls?

The average marks of 48 students in a class is 45. the average marks of the boys in the class is 40 and average marks of the girls in the class is 50. what is the ratio between the numbers of boys and the number of girls in the class ?

In a class of 100 students there are 70 boys whose average marks in a subject is 75. If the average marks of the complete class is 72, then what is the average number of the girls ?