SOLUTION: 2. How many 4-character license plates are possible with 2 letters from the alphabet followed by 2 digits, if repetitions are allowed? if repetitions are not allowed?

Question 221659: 2. How many 4-character license plates are possible with 2 letters from the alphabet followed by 2 digits, if repetitions are allowed? if repetitions are not allowed?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
How many 4-character license plates are possible with 2 letters from the alphabet followed by 2 digits, if repetitions are allowed? if repetitions are not allowed?
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Repetitions allowed: 26^2*10^2 = 67600
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Not allowed: 26*25*10*9 = 58500
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Cheers,
Stan H.
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