In the next few problems, you will estimate the number of possible telephone numbers in Georgia. A telephone number consists of seven digits, the first three representing the exchange. The first digit of an exchange cannot be 1 or 0.
There are two other restrictions:
• The second digit and third digit cannot both equal 1 since these values are designated for other purposes such as 911(emergency) and 411 (information), and
• 555-0100 through 555-0199 are reserved for fictional uses such as in television shows or movies.
According to these conditions, how many 7-digit numbers are possible in a single area code?
Using your answers to the previous questions, determine how many 10-digit numbers are restricted in the Atlanta Metropolitan.
There are two other restrictions:
• The second digit and third digit cannot both equal 1 since these values are designated for other purposes such as 911(emergency) and 411 (information), and
• 555-0100 through 555-0199 are reserved for fictional uses such as in television shows or movies.
According to these conditions, how many 7-digit numbers are possible in a single area code?
Using your answers to the previous questions, determine how many 10-digit numbers are restricted in the Atlanta Metropolitan.
