A person wants to go to another city by bus and return by train. He has a choice of 5 different buses and 4 trains to returns. In how many ways can be perform his journey?

John wants to go abroad by ship and return by air. He has a choice of 6 different ships to go and 4 airlines. To return. In how many ways can be perform his journey ?

A child has 6 pockets. In how many ways can he put 5 marbles in his pocket?

A servant has to post 5 letters and there are 4 letter boxes. In how many waysy can he post the letters?

A person wants to go from station P to station R via station Q. There are 4 routes from P to Q and 5 routes from Q to R. In how many ways can he travel from P to R ?

A person wants to go from station A to station C via station b. There are three routes from A to B four routes from B to C. In how many ways can he travel from A to C?

In how many ways 5 rings of different tyhpes can be worn in 4 fingers?

A person wants to leave station B. There are three routes from station B to A and four routes from B to c. In how many ways can he leave the station B.

There are four bus routes between A and B, and three bus routes between B and C. A man can travel round trip in number of ways by bus from A to C via B. If he does not want to use a bus route more than once, in how many ways can he make round trip ?