SOLUTION:
1. At one time a local telephone number was given by a sequence of two letter followed by five numbers. How many different telephone numbers were there?
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1. At one time a local telephone number was given by a sequence of two letter followed by five numbers. How many different telephone numbers were there?
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Question 850463:
1. At one time a local telephone number was given by a sequence of two letter followed by five numbers. How many different telephone numbers were there? Answer by checkley79(3341) (Show Source):
You can put this solution on YOUR website! 26 for the letters (including o )
10 for the numbers (including 0 )
26*26*10*10*10*10*10=67,600,000 ans.
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