+0  
 
-1
154
3
avatar+397 

deleted.

 Nov 9, 2019
edited by sinclairdragon428  Nov 20, 2019
 #1
avatar+109740 
+1

This involves something  known as  a  "Stirling Number of the Second Kind"

 

The total number  of  ways  =

 

S2 ( 4, 1)  +  S2 (4,2)  + S2 (4, 3)  =

 

      1      +        7         +        6    =

 

              14 ways

 

 

cool cool cool

 Nov 9, 2019
 #2
avatar+397 
0

thanks

sinclairdragon428  Nov 9, 2019
 #3
avatar+109740 
0

OK....!!!

 

cool cool cool

CPhill  Nov 9, 2019

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