SOLUTION: We need to create serial numbers that start with one of the letters a, b, c, d, or f followed by three non-repeating digits. How many serial numbers can be created?

Question 427689: We need to create serial numbers that start with one of the letters a, b, c, d, or f followed by three non-repeating digits. How many serial numbers can be created?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
We need to create serial numbers that start with one of the letters a, b, c, d, or f followed by three non-repeating digits. How many serial numbers can be created?
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Ans: 5 ways pick a letter
10*9*8 = 720 ways to pick 3 digits
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Total ways = 5*720 = 3600 ways
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Cheers,
Stan H.
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