Question

A boy has nine trousers and 12 shirts. In how many different ways can he select a trouser and a shirt?

Answer 1

in 9 different ways he can select a trousers and a shirt

Answer 2

For one shirt he can choose from nine trousers
That is there are nine ways for one shirt

So for 12 shirts = 12 x 9
= 108
So thare are 108 ways