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

In a classroom, one-fifth of the boys leave the class and the ratio of the remaining boys to girls is 2:3. If further 44 girls leave the class, the ratio of boys to girls is 5:2. How many more boys should leave the class so that the number of boys equals that of girls ?

The ratio of the number of boys and the number of girl in a class is 9:11. If the number of boys is 18, then the number of girls is ____.

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 number of boys and girls ina college is 6 : 7. Ifthe percentage increase in the number of boys and girls be 20% and 10% respectively, what will be the new ratio?

In a class, the number of boys and girls is in the ratio of 4 : 5. If 10 more boys join the class, the ratio of numbers of boys and girls becomes 6 : 5. How many girls are there in the class?

The average score of a class of boys and girls in an examination is A .The ratio of boys and girls in the class is 3:1. If the average score of the boys is A+1, the average score of the girls is A-1 (b) A-3 (c) A+1 (d) A+3

The ratio of number of girls to the number of boys in a class is 5:4. If there are 25 girls in the class, then the number of boys in the class is