Question 795191
Question:
License plates of automobiles registered in a certain community show 5 symbols,
namely 2 letters followed by 3 digits.
LLDDD
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(a) How many diff erent plates could be made?
26^2*10^3 = 626000
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(b) How many different plates could be made if the order of letters and digits would not be fixed? 
same as above
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(c) How many automobile registrations my the police have to check in a hit-and-run accident if a witness reports KP5 and cannot remember the last two digits on the license plate but is certain that all three digits were diff erent?
1*1*1*10*9 = 90
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Cheers,
Stan H.
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