Originally Posted by

**thecleric** A chessboard has 64 squares arranged into 8 rows and 8 columns...

1. how many ways can eight identical pawns be placed on chessboard so that no two are in the same row or column?

2. how many ways can two white rooks and two black rooks be placed on a chessboard so that no two rooks of the opposite color are in the same row or column?

--ALSO--

A local dairy offers 16 flavors of ice cream...

1. how many ways are there to purchase eight scoops of ice cream? isn't that 16 choose 8?

2. how many ways are there to purchase eight scoops of ice cream of eight different flavors?