SOLUTION: In a certain country, telephone numbers have 9 digits. The first two digits are the area code, which is always 03. The last 7 digits are the local number. Any digit can be used in
Algebra ->
Permutations
-> SOLUTION: In a certain country, telephone numbers have 9 digits. The first two digits are the area code, which is always 03. The last 7 digits are the local number. Any digit can be used in
Log On
Question 1061007: In a certain country, telephone numbers have 9 digits. The first two digits are the area code, which is always 03. The last 7 digits are the local number. Any digit can be used in the local number. However, the local number must start with any number except 0.How many different telephone numbers are possible within a given area code in this country? Answer by Boreal(15235) (Show Source):