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If there are 6 roads from town A to town B and 3 roads from town B to town C, how many routes are there from town A to town C which go through town B?

User Kickstart
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2 Answers

3 votes
I also think 9, because you must add up all of the roads so the answer would be 9.
User Quassnoi
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2 votes
I think 9 routes I add the a to b and b to c
User Undistraction
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