SOLUTION: you are placing 12 pictures on separae pages in an album. how many different ways can you order the 12 pictures in the album? how many different ways can 4 of the 12 pictures be
Algebra ->
Permutations
-> SOLUTION: you are placing 12 pictures on separae pages in an album. how many different ways can you order the 12 pictures in the album? how many different ways can 4 of the 12 pictures be
Log On
Question 183556: you are placing 12 pictures on separae pages in an album. how many different ways can you order the 12 pictures in the album? how many different ways can 4 of the 12 pictures be placed on the first 4 pages? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! you are placing 12 pictures on separate pages in an album. how many different ways can you order the 12 pictures in the album?
Ans: 12! = 479,001,600
=============================
how many different ways can 4 of the 12 pictures be placed on the first 4 pages?
------------------------------------
12P4 = 12!/(12-4)! = 12*11*10*9 = 11,880
=========================================
Cheers,
Stan H.