SOLUTION: to gain access to his account, a customer using an automatic teller machine (ATM) must enter a five-digit code. if repetition of the same five digit is not allowed (for example, 55

Question 929564: to gain access to his account, a customer using an automatic teller machine (ATM) must enter a five-digit code. if repetition of the same five digit is not allowed (for example, 55555) how many possible combinations are there?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
10 digits
5 places
.
.
.

5 digit repetitions are not allowed, there are 10 of them,
00000
11111
.
.
.
88888
99999
So subtract those out,

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