How many area codes (ABC) would be possible if all three digits could be any value 1-9?27307291,000

Douglas M asked Mar 8, 2023

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Douglas M asked Mar 8, 2023

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22 votes

given

area codes (ABC) giving value 1-9

Answer

A can take 9 values

B can also take 9

C can also take 9

Total ways = 9x 9 x 9 = 729

WJA answered Mar 13, 2023

by WJA

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