A person has 8 friends. The number of ways in which he may invite one or more of them to a dinner is.

A man has 6 friends. The number of ways can he invite one or more of them to dinner is

The number of ways in which a man can invite one or more of his 8 friends to dinner is

A man has 6 friends. Number of ways he can invite one or more of them to a tea party is

A man has 6 friends . In how many ways ways may be invite one or more of them to dinner?

Ramesh has 6 friends. In how many ways can he invite one or more of them at a dinner

Anil has 8 friends In how many wasys can he invite one or more of his friends to a dinner?

Anil has 8 friends In how many wasys can he invite one or more of his friends to a dinner?

A woman has 11 close friends. Number of ways in which she can invite 5 of them to dinner if two particular friends of them are not on speaking terms and will not attend together is