Direction: Read the passage carefully and answer the following questions carefully given below:

In a school there are 1200 students in the school in which the ratio of boys and girls in the school is 5 : 7. One-fifth of students in the school study in class VIII in which the ratio of boys to girls is 5 : 3. The average age of the boys is 12 and that of the girls is 13. In an examination there are 4 subjects – P, Q, R and S consists of full marks 100, 120, 80 and 150 respectively. Passing marks in each subject is 40%. The ratio of average marks obtained by students in subjects R and S is 16 : 13. The average marks obtained by students in subjects P and S is 11 : 26. Two-ninth of girls failed in subject Q and 60% of boys got pass marks in subject Q. one-third of boys failed in subject R and one-third of girls got pass marks in subject R.