SOLUTION: The personal identification number for a mobile phone consists of a four-digit number which is formed from the digits 0 to 9 inclusive. How many PIN numbers are possible?

Question 949424: The personal identification number for a mobile phone consists of a four-digit number which is formed from the digits 0 to 9 inclusive.
How many PIN numbers are possible?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The personal identification number for a mobile phone consists of a four-digit number which is formed from the digits 0 to 9 inclusive.
How many PIN numbers are possible?
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Assuming duplicate digits the answer is 10^4 = 10000
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Cheers,
Stan H.
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