The table below shows the number of girls, the percentage of boys out of the total students, and the percentage of students who attended a seminar in ...
Question
The table below shows the number of girls, the percentage of boys out of the total students, and the percentage of students who attended a seminar in four different schools.
| Schools | Number of girls | Percentage of boys out of total students | Percentage of students attended the seminar |
|---|---|---|---|
| P | 120 | 40\% | x\% |
| Q | 80 | 80\% | 40\% |
| R | 35 | 65\% | y\% |
| S | 50 | 75\% | 60\% |
Note:
- x is 5% of the average number of students in schools P and Q.
- y is 12.5% of the total students who attended the seminar in school Q.
- Total students = number of girls + number of boys.
- Total students = students who attended the seminar + students who did not attend the seminar.
If the ratio of girls to boys who attended the seminar in school Q is 3:1, and in school R is 3:2, find the sum of the total boys who attended the seminar in schools Q and R.