In how many ways 5 delegates can be put in 6 hotels of a city if there is no restriction?

In how many ways can 5 letters be posted in 4 letter boxes?

In how many ways can 4 letters be posted in 5 letter boxes?

In how many ways can 4 letters be posted in 5 letter boxes?

In how many ways can 4 letters be posted in 3 letter boxes?

In how many ways can 7 letters be posted in 4 letter boxes?

In how many ways five persons can stand in a row ?

In how many ways 10 different balls can be put in 2 difference boxes ?

From 6 gentlemen and 4 ladies a committee of 5 is to be formed. In how many ways can this be done if,( i). there is no restriction (ii). the committee is to include at least one lady.

In how many ways 10 persons can be divided into 5 pairs?

In how many ways can 8 persons sit in a round table.