SOLUTION: Social Security Numbers: A social security number consists of nine digits. How many different social security numbers are possible if repetition of digits is permitted?
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Question 129229: Social Security Numbers: A social security number consists of nine digits. How many different social security numbers are possible if repetition of digits is permitted?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Each digit can be selected in 10 different ways.
# of SS #'s = 10^12 = 1,000,000,000,000
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Cheers,
Stan H.
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