A gentle man wants to invite six friends. In how many ways can he send invitation cards to them, if he has three servants to carry the cards.

A man has 6 friends. In how many ways can he invite one or more of them to a party?

A man has 7 friends . In how many ways may he invite one or more of them to party?

A man has 10 friends. In how many ways he can invite one of more of them to a party ?

A man has 6 friends .how many ways can be invite one or more of them to a party?

A man has 7 relatives ,4 of them are ladies and 3 are gentlemen , his wife has also 7 relatives , 3 of them are ladies and 4 are gentlemen . In how many ways can they invite a dinner party of 3 ladies and 3 gentlemen so that there are 3 of the man 's relative and 3 of the wife 's relative ?

Seven relatives of a man comprises four ladies and three gentlemen: his wife has also seven relatives-three of them are ladies and four gentlemen. In how many ways fan they invite 3 ladies and 3 gentlemen at a dinner party so that there are three man's relatives and three wife's relatives?

A farmer has a field in the form of a parallelogram PQRS as shown in the figure. He took the mid- point A on RS and joined it to points P and Q. In how many parts of field is divided? What are the shapes of these parts ? The farmer wants to sow groundnuts which are equal to the sum of pulses and paddy. How should he sow? State reasons?

20 persons were invited to a party. In how many ways can they and the host be seated at a circular table ? In how many of these ways will two particular persons be seated on either side of the host .

In how many ways can a pack of 52 cards divided in 4 sets, three of them having 17 cards each and fourth just 1 card ?

A servant has to post 5 letters and there are 4 letter boxes in how many ways can he post the letter is