SOLUTION: Paulo is putting 8 books on a bookshelf.In how many different arrangements can he put the books?

Algebra ->  Permutations -> SOLUTION: Paulo is putting 8 books on a bookshelf.In how many different arrangements can he put the books?      Log On


   



Question 596245: Paulo is putting 8 books on a bookshelf.In how many different arrangements can he put the books?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
# of ways to fill the 1st position: 8
# of ways to fill the 2nd position: 7
....
....
# of ways to fill the last postion: 1
-------
# of ways to arrange the 8 books: 8*7*6....*2*1 = 8!
====================================================
Ans: 8P8 = 8!/(8-8)! = 8! = 1 = 40320
==========
cheers,
Stan H.