Study Groups mein friends ko kaise invite kare?

A person wishes to make up as many different parties as he can out of his 16 friends such that each partu consists of the same number of persons. How many friends should be invite ?

A person tries to form as many different parties as he can,out of his 20 friends.Each party should consist of the same number.How many friends should be invited at a time? In how many of these parties would the same friends be found?

A man has three friends.The number of ways he can invite one friend everyday for dinner on six successive nights so that no friend is invited more than three xx is a.640 b.320 c.420 d.510

Mohan has 8 friends, in how many ways he invite one or more of them to dinner?

The probability of inviting three of your friends on 5 consecutive days, exactly one friend a day and no friend is invited on more than two days is

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

The probability of inviting three of your friends on 5 consecutive days, exactly one friend a day and no friend is invited on more than two days is (A) 10/87 (B) 10/27 (C) 60/243 (D) 15/81

A man invites a party to (m+n) friends to dinner and places m at one round table and n at another. The number of ways of arranging the guests is