How many terminal electric cell consists of ?

A committee of 5 person is to be selected from a group of 4 men and 5 women. In how many ways can this be done? How many of these committees would consist of 2 men and 3 women?

A committee of 3 persons is to be constituted from a group of 2 men and 3 women. How many of these committees would consist of 1 man and 2 women?

A committee of 3 persons is to be constituted from a group of 2 men and 3 women. How many of these committees would consist of 1 man and 2 women?

A box encloses an electric dipole consisting of charges 5 mu c and -5 mu c and of length 10 cm. The total electric flux through the box is

There are 8 men and 5 women. How many committees consists of 5 men and 3 women can be formed if one particular man and one particular woman are included in the committee?