BOYS Vs GIRLS

What is the number of students in the class ? I Ratio of boys and girls is 3 : 4 ii Girls are 18 more than boys,

The average weight of girls is 15 and the average weight of boys is 30 and the average weight of boys and girls both is 25. If the number of boys are 12, then the number of girls is :

The average weight of girls is 15 and the average weight of boys is 30 and the average weight of the boys and the girls both is 25. If the number of boys are 12, then the number of girls is :

In a class of 49 students, the ratio of girls to boys is 4:3. If 4 girls leave the class, the ratio of girls to boys would be

There are two boys and three girls. A committee of two is to be formed. Find the probability that the committee contains (i) Only girls (ii) One boy and one girl Only boys (iv) at least one girl

The ratio of the number of boys to the number of girls in a school activity is 3:4. There are 18 more girls than boys. If 6 boys quit, what will be the new ratio of the number of boys to the number of girls?

Boy and Girl standing in a queue

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 ?