In a class there are 27 boys and 14 girls. The teacher wants to select 1 boy and 1 girl to represent the class for a function. In how many ways can the teacher make this selection?

In a class there are 30 boys and 18 girls. The teacher wants to select one boy and one girl to represent the class for a quiz competition. In how many ways can the teacher make this selection ?

There are 25 students in a class in which 15 boys and 10 girls. The class teacher select either a boy or girl for monitor of the class. In how many ways the class teacher can make this selection?

In a class,there are 20 boys and 40 girls.What is the ratio of the number of boys to the number of girls?

In how many ways can a team of 3 boys and 3 girls be selected from 5 boys and 4 girls?

From a class of 32 students, 4 are to be chosen for a competition. In how many ways can this be done ?

In how many ways can 4 boys and 3 girls be seated in a row of 7 chairs if boys and girls alternate ?

A committee of 2 boys is to be selected from 4 boys. In how many ways can this be done ?

We wish to select 6 persons from 8, but if the person A is chosen, then B must be chosen. In how many ways can the selection be made ?