Find the number of ways to give 16 different things to three persons A, B, C so that B gets 1 more than A and C gets 2 more than B.

Find the number of ways in which 22 different books can be given to 5 students, so that two students get 5 books each and all the remaining students get 4 books each.

Find the total number of permutations of n different things taken not more than r at a time, when each thing may be repeated any number of times.

The number of ways in which 7 persons can address a meeting so that out of the three persons A, B and C, A will speak before B and B before C is

Number of ways in which 25 identical things be distributed among five persons if each gets odd number of things is

In how many ways can Rs. 16 be divided into 4 persons when none of them gets less than Rs. 3?

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 times is a. 640 b. 320 c. 420 d. 510

Find the number of selections of one or more things from the group of p identical things of one type, q identical things of another type, r identical things of the third type and n different things.

The number of ways of partitioning the set {a,b,c,d} into one or more non empty subsets is

In an election, the number of candidates is one greater than the persons to be elected. If a voter can vote in 254 ways, the number of candidates is a. 7 b. 10 c. 8 d. 6

Find the probability of getting more than 7 when two dice are rolled.