# How many different ways can 6 books be placed on a shelf?

##### 1 Answer

May 6, 2017

#### Explanation:

I'm going to assume that the 6 books are distinguishable (that is, we don't have multiple copies of any one book).

In the first place on the shelf, we have 6 choices.

In the second place, we have 5 choices.

In the third place, we have 4 choices.

And so on.

Therefore we can place them: