a man has 6 friends. in how many ways may he invite one or more of them in a dinner?

This can be thought of in terms of combinations. Inviting r friends out of n is same as choosing r friends out of n. So, we can write the possibilities as:

6C1+6C2+6C3+6C4+6C5+6C6

=6+15+20+15+6+1

=63

Therefore, there are 63 ways in which he can invite 1 or more friends out of his 6 friends.

We provide you information related questions as A man has 6 friends in how many ways can he invite one or more of his friends at a dinner.

A man has 6 friends in how many ways we can invite one or more of them for a tea party
a man has 4 friends.

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

A man has 7 friends in how many ways can he invite one or more of his friends
A man has ten friends in how many ways he can invite one or more of them.

A gentleman has 6 friends to invite
A person has 8 friends In how many ways he may invite one or more to a party

# A man has 6 friends in how many ways may he invite one or more of them in a dinner?

So, the number of ways he could do this is:- Invite only one friend
- Invite any two friends
- Invite any three friends
- Invite any four friends
- Invite any five friends
- Invite all six friends

This can be thought of in terms of combinations. Inviting r friends out of n is same as choosing r friends out of n. So, we can write the possibilities as:

6C1+6C2+6C3+6C4+6C5+6C6

=6+15+20+15+6+1

=63

Therefore, there are 63 ways in which he can invite 1 or more friends out of his 6 friends.