Ratio Special Class

12 PM Special Class | Class 11 - STRUCTURE OF ATOM || BOHR MODEL By Yakshu Ma'am

There are 20 girls and 15 boys in a class.(a) What is the ratio of number of girls to the number of boys? (b) What is the ratio of number of goys? (b) What is the ratio of in the class?

The ratio of the number of students of three class is 2:3:5 .If 20 students are added in each class then the ratio becomes 4:5:7 .Find the number of student in each class before adding .

In a class the ratio of female students to male students is 16:9. What percentage o the class is female?

If the ratio of boys to girls in a class is B and the ratio of girls to boys is G, then 3 (B + G) is :

The ratio of the boys to girls in a class is 2:3 . If 20% of boys leave this class,then the new ratio of boys to girls is