Question 1081006:  In how many ways can a committee consisting of 4 faculty members and 5 students be formed if there are 11 faculty members and 15 students eligible to serve on the committee? 
 Answer by josmiceli(19441)      (Show Source): 
You can  put this solution on YOUR website! For the faculty members: 
C( 11, 4 ) 
For the students: 
C( 15, 5 ) 
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Each of the groups of 4 faculty members 
are able to combine with a group of 
5 student members in the following way: 
C( 11,4 ) x C( 15, 5 )  
--------------------------- 
C( 11, 4 ) =   
C( 11, 4 ) =   
C( 11,4 ) =   
C( 11,4 ) =   
C( 11,4 ) =   
and 
C( 15,5 ) =   
C( 15,5 ) =   
C( 15,5 ) =   
C( 15,5 ) =   
C( 15,5 ) =   
------------------------------- 
C( 11,4 ) x C( 15, 5 ) =   
C( 11,4 ) x C( 15, 5 ) =   
------------------------------------ 
There are 990,990 ways to form a committee 
Definitely get a 2nd opinion ( if needed ) on this.
 
 
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