SOLUTION: A telephone company wants to create as
many 7-digit phone numbers as possible
without changing the first 3 digits. How
many phone numbers can be created?
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-> SOLUTION: A telephone company wants to create as
many 7-digit phone numbers as possible
without changing the first 3 digits. How
many phone numbers can be created?
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Question 574411: A telephone company wants to create as
many 7-digit phone numbers as possible
without changing the first 3 digits. How
many phone numbers can be created? Found 2 solutions by nyc_function, sudhanshu_kmr:Answer by nyc_function(2741) (Show Source):
You can put this solution on YOUR website!
According to question first 3 digits are fixed.
Number of ways to create 4 digit numbers = 10* 10*10*10 = 10000
(repetition of digits are allowed on phone number)
