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:
