SOLUTION: how many different 4 digit PINs can be created using the numbers 2, 3, 0, 6, 7, and 8 with repitition. i know with repitition it would be 6 x 6 x 6 x 6 = 1296 HOWEVER for a pin n

Algebra ->  Permutations -> SOLUTION: how many different 4 digit PINs can be created using the numbers 2, 3, 0, 6, 7, and 8 with repitition. i know with repitition it would be 6 x 6 x 6 x 6 = 1296 HOWEVER for a pin n      Log On


   



Question 40314: how many different 4 digit PINs can be created using the numbers 2, 3, 0, 6, 7, and 8 with repitition.
i know with repitition it would be 6 x 6 x 6 x 6 = 1296
HOWEVER for a pin number like 2222 rearranging the numbers is useless because you don't get a new number. This is the same for a number like 2223, or 2233 <- rearranging is pointless.
So, please help me fiigure out how to apply these restrictions with all the numbers

Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
You are saying with repition in your question ....
that would be: 6 * 6 * 6 * 6 = 1296
If with limitations of different numbers ....
6 * 5 * 4 * 3 = 360