Question

How many ways can six books be stacked on one shelf?

Answer 1

Thanks alot, First time being here and i like what i got thank. I know were to go!

Answer 2

First book can go in any of 6 places, second in any of the 5 remaining and so on until fifth book has 2 options.
There are therefore 6 x 5 x 4 x 3 x 2 ie 720 possible arrangements