In a school, there are total 1554 students and boys and girls The ratio is 4: 3. A few days later 30 girls join the school is. But some boys leave school and the ratio is 7: 6 goes. Find the number of boys left school?

In a school there were 1554 students and the ratio of the number of the boys and girls was 4:3 After few days , 30 girls joined the school but few boys left as a results the ratio of the boys and girls became 7:6 .The number of boys who left the school is .

In a school there were 1554 students and the ratio of the number of the boys and girls was 4 : 3 .After few days, 30 girls joined the school but few boys left , as a result the ratio of the boys and girls became 7:6 .The number of boys who left the school is

The total number of students in a school was 660. The ratio of number of boys and girls was 13 : 9. After some days, 30 girls joined the school and some boys left. The new ratio of number of boys and girls became 6:5. Find the number of boys who left the school.

The total number of students in a school was 660 .the ratio of number of boys and girls was 13 :9 After some days , 30 girls joined the school and some boys left .The new ratio of number of boys and girls became 6:5 Find the number of boys who left the school .

The total number of students in a school was 660 .The ratio of number of boys and girls was 13:9 After some days , 30 girls joined the school and some boys left .the new ratio of number of boys and grils became 6:5 .Find the number of boys who left the school .

In a school there were 550 students and the ratio of boys and girls was 6:5. After some time 50 girl students joined the school but few boys left the school. As a result,the ratio of boys and girls became 11:12 .Find how many boys left the school.

70% of the students in a school are boys and the number of girls is 504 find the number of boys in the school

There are total 200 students in a school, of which (3)/(10) are boys . Find the number of girls in the school.