SOLUTION: How many 7 digit telephone numbers can be created if the first digit must be 8 the second must be 5 and the third must be 2 or 3

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Question 984714: How many 7 digit telephone numbers can be created if the first digit must be 8 the second must be 5 and the third must be 2 or 3
Answer by Edwin McCravy(20064) About Me  (Show Source):
You can put this solution on YOUR website!
How many 7 digit telephone numbers can be created if the first digit must be 8 the
second must be 5 and the third must be 2 or 3
ABC-DEFG

1 choice for A, 8
1 choice for B, 5
2 choices for C, either 2 or 3
10 choices for D, 0,1,2,3,4,5,6,7,8,9
10 choices for E, 0,1,2,3,4,5,6,7,8,9
10 choices for F, 0,1,2,3,4,5,6,7,8,9
10 choices for G, 0,1,2,3,4,5,6,7,8,9

Answer: 1x1x2x10x10x10x10 = 20000

Edwin