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## A seven digit telephone number is of the form ABC-DEFG. In one particular state, the digit ‘A’ can be any digit except 0 and 1. Th

Question

A seven digit telephone number is of the form ABC-DEFG. In one particular state, the digit ‘A’ can be any digit except 0 and 1. The digits B and C can be any digit from 2 – 9. The digits D, E, F, and G can be any digit 0 – 9 except they can’t all be the same (e.g. 0000, 1111, 2222, ….etc.). How many seven digit phone numbers are possible with these restrictions?

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Math High School
2 weeks
2022-12-26T10:11:03+00:00
2022-12-26T10:11:03+00:00 1 Answer
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## Answer ( 1 )

phone numbers that are possible with these restrictions areOption C## How many seven-digit phone numbers are possible with these restrictions?

Secondand third digits:between1 and 8.lastfour numbers are up for interpretation, thus each one may take one of ten possible forms.numbersabove is:digit telephone