SOLUTION: Serial numbers for a product are to be made using 2 letters followed by 4 digits. The letters are to be taken from the first 9 letters of the alphabet, with no repeats. The digit

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Question 1132239: Serial numbers for a product are to be made using 2 letters followed by 4 digits. The letters are to be taken from the first 9 letters of the alphabet, with no repeats. The digits are taken from the 10 digits (0,1,2,...,9), with no repeats. How many serial numbers can be generated?
Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
total serial numbers generated = 9 * 8 * 10 * 9 * 8 * 7 = 362,880
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Note there are 9 choices for the first letter, then 8 choices for the second letter, there are 10 choices for the first number, and so forth
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