How many different license plate numbers can be made using 2 letters followed by 4 digits selected
Question:
How many different license plate numbers can be made using 2 letters followed by 4 digits selected from the digits 0 through 9, if
(a) letters and digits may be repeated?
(b) letters may be repeated, but digits may not be repeated?
(c) neither letters nor digits may be repeated?
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a There are 26 choices for each of the first two positions and 10 c...View the full answer
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