- #1
thomasrules
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Here is the question I cannot get it...
In a series of license plates, the first three symbols are any of the 26 letters in the alphabet and the last three are any of the 10 digits from 0 to 9.
How many plates can be formed in which at least one symbol is repeated?
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--------I know that 26^3x10^3 is the total possible combinations.
I thought that you would do this: (26^3-25^3)x(10^3-9^3)
In a series of license plates, the first three symbols are any of the 26 letters in the alphabet and the last three are any of the 10 digits from 0 to 9.
How many plates can be formed in which at least one symbol is repeated?
-
--------I know that 26^3x10^3 is the total possible combinations.
I thought that you would do this: (26^3-25^3)x(10^3-9^3)