In how many ways can 5 people occupy 8 vacant chairs?

In how many ways can 5 persons occupy 3 vacant seats?

In how many ways can 5 persons occupy 3 vacant seats ?

In how many ways can 7 people line up at a ticket window of a cinema hall?

In how many ways can 8 people sit around a table?

In how many ways 4 persons can occupy 10 chairs in a row, if no two sit on adjacent chairs?

In how many ways can five people be divided into three groups? (b) In how many ways can five people be distributed in three different rooms if no room must be empty? In how many ways can five people be arranged in three different rooms if no room must be empty and each room has 5 seats in a single row.

In how many ways can 3 people be seated i a rwo containing 7 seats?