SOLUTION: Heres questin my aunt asked about. I dont think its in any book. Can you help please. You have a list of zip codes with only the 5-numbers and no extra numbers, no replacement a

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Question 196055: Heres questin my aunt asked about. I dont think its in any book. Can you help please. You have a list of zip codes with only the 5-numbers and no extra numbers, no replacement and no repetition. Whats the possible number zip codes can we have?
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
The number of zip codes possible from 00000 to 99999 is:
10!/(10-5)! Permutation because arrangement is important.
=(10*9*8*7*6*5!)/5!
=30,240
.
Ed