SOLUTION: An access code for a car security system consists of 4 digits. Each digit can be 1,2,3 or 4. How many access codes are possible if each digit can be used only once. (No repeats)

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Question 1083500: An access code for a car security system consists of 4 digits. Each digit can be 1,2,3 or 4. How many access codes are possible if each digit can be used only once. (No repeats)
Answer by ikleyn(52780) About Me  (Show Source):
You can put this solution on YOUR website!
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4! = 4*3*2*1 = 24.