SOLUTION: Serial numbers for a product are to be made using 2 letters followed by 2 numbers. If the letters are to be taken from the first 5 letters of the alphabet with no repeats and the n

Question 1088765: Serial numbers for a product are to be made using 2 letters followed by 2 numbers. If the letters are to be taken from the first 5 letters of the alphabet with no repeats and the numbers are taken from the digits 0 through 9 with no repeats, how many serial numbers can be generated?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
5 ways to choose the first and 4 ways to choose the second letter, so that is 20 ways.
10 ways to choose the first number and 9 the second, so that is 90 ways.
The product of 20*90=1800.
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