+0  
 
0
190
2
avatar

How many paths are there from A to B passing through C, if every step must be up or to the right?

 

Guest Jun 23, 2018
 #1
avatar
0

See the answer here:

 

https://web2.0calc.com/questions/how-many-paths-are-there-from-to-if-every-step-must#r1

Guest Jun 23, 2018
 #2
avatar+91297 
+2

From A to C we have all the possible arrangements of this set

 

( North, North, East)  =  C(3,1)   = 3

 

From C to B we have all the possible arrangements of this set

 

( North , North, East, East, East, East )   =  C(6,2)  = 15

 

So...the total number of paths from  A to B  through C are  3 * 15  = 45

 

 

 

cool cool cool

CPhill  Jun 23, 2018

6 Online Users

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.