A license plate has three letters followed by three numbers. Suppose the digits from 0...9 can be used, except all three digits cannot be zero, and that any letter from A-Z with repeats can be used. How many plates are possible?
My question is on the 0. Does this mean NONE can be used or only TWO?
The Attempt at a SolutionI was marked wrong for the following:
I set up as 26 x 26 x 26 x 10 x 10 x 9 = 15,818,400
What is the correct way to set up this problem?