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Assuming that there are 10 digits used as telephone number and the area code is a fixed 3 digit number. How many numbers could be created?
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Assuming that there are 10 digits used as telephone number and the area code is a fixed 3 digit number. How many numbers could be created?

User Zasaz
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1 Answer

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Well 10 minus 3 equals 7 so 7 numbers can be created.
User Lord Vermillion
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