GabbanelliS329133 GabbanelliS329133

28-10-2022
Mathematics

contestada

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

Respuesta :

SevenS413599 SevenS413599

28-10-2022

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

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