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amyg
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suppose there are 8 roads connecting town A to town B and 5 roads connecting town B to town C. In how many ways can a person travel from A to C via B?
 2 years ago
 2 years ago
amyg Group Title
suppose there are 8 roads connecting town A to town B and 5 roads connecting town B to town C. In how many ways can a person travel from A to C via B?
 2 years ago
 2 years ago

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littlepixie99 Group TitleBest ResponseYou've already chosen the best response.0
as there are eight roads there are eight options to get to town b. there are five options to get to town c. therefore you must do 8 (original options a  b) * 5 (options bc)
 2 years ago

amyg Group TitleBest ResponseYou've already chosen the best response.0
I do no understand the formula
 2 years ago

littlepixie99 Group TitleBest ResponseYou've already chosen the best response.0
ok sorry,a  b means the road from town a to b b  c means the road from town b to c
 2 years ago

littlepixie99 Group TitleBest ResponseYou've already chosen the best response.0
another way to think about it it there are 8 ways to get to the first road of b to c there are eight ways to get to the second road of b to c and so on until the fifth road of b to c so you have 5 lots of 8 options thus 5*8
 2 years ago

amyg Group TitleBest ResponseYou've already chosen the best response.0
ok i think i understand. thank you
 2 years ago
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