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 he 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 ways can he post the letter is

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?

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?

A man has 6 friends. In how many ways can he invite one or more of his friends to a party ?

There are two routes joining city A to a city B and three routes joining B to another city C . In how many ways can a person perform a journey from A to C ?

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 ?