Mathematics, 11.02.2021 06:10 frisha

A ten digit telephone number is of the form (XYZ) – ABC –DEFG. In one particular state, there are 3 possible area codes (341, 602, and 581). The digit ‘A’ is restricted to a number 2 through 9. The digits B and C can be any number but they cannot repeat. The digits D, E,F, and G have no restriction. How many seven digit phone numbers are possible with these restrictions?

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A ten digit telephone number is of the form (XYZ) – ABC –DEFG. In one particular state, there are 3...

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