Factorisation#!#Boys Vs Girls

In a group of boys and girls , 15 girls left the group , the ratio boys and girls becomes 2:1 . If after , 45 boys left the group , the ratio become 1 :5 Initially ,how many girls were there in the group ?

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 ?

In a school having roll strength 286, the ratio of boys and girls is 8: 5. If 22 more girls get admitted into the school, the ratio of boys and girls becomes

In a school, 10% of boys are equal to the one-fourth of the girls. What is the ratio of boys and girls in that school?

In a school, 10% of the boys are same in numbers as frac(1)(4)th of the girls. What is the ratio of boys to girls in that school?

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

The ratio of boys and girls in a scholl is 8 : 3 . If the toltal number of girls 375, find the number of boys in the school.