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How many 9 step paths are there from E to G which pass through F?

 

 Oct 17, 2020
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Try to find the number of ways from E to F and the number of ways from F to G, then mulitply.

 

E -> F

 

4 choose 2 = 6

 

F -> G

 

5 choose 2 = 10

 

6 * 10 = 60.

 

Hope this helps!

 
 Oct 17, 2020

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