In a class 15 boys and 20 girls average marks is 42. 15 boys average marks are 41.5.Find the average marks of girls?

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

The average marks obtained by the students in a class are 43. If the average marks obtained by 25 boys are 40 and the average marks obtained by the girl students are 48, then what is the number of girl students in the class?

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?

In a class of 10 boys and 15 girls, the average score on a biology test is 90. If the average score for the girls is x, what is the average score for the boys in terms of x ?

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 ?