SOLUTION: In a different plan for area codes, the first digit could be any number from 1 through 7, the second digit was either 1 or 2, and the third digit could be any number except 3, 6 o

Question 1132270: In a different plan for area codes, the first digit could be any number from 1 through 7, the second digit was either 1 or 2, and the third digit could be any number except 3, 6 or 7. With this plan, how many different area codes are possible?
Found 3 solutions by Fombitz, Alan3354, MathTherapy:
Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
Seven choices for the first number.
Two choices for the second number.
Three choices for the third number.
So,

Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
7*2*7 = 98
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Three different answers.
You pick one.
================
OK, 2 now.
Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!
In a different plan for area codes, the first digit could be any number from 1 through 7, the second digit was either 1 or 2, and the third digit could be any number except 3, 6 or 7. With this plan, how many different area codes are possible?
7(2)(7)
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