SOLUTION: Evaluate: 5C3

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Question 574593: Evaluate: 5C3
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
C(n,r) = (n!)/(r!(n-r)!)

C(5,3) = (5!)/(3!*(5-3)!)

C(5,3) = (5!)/(3!*2!)

C(5,3) = (5*4*3!)/(3!*2!)

C(5,3) = (5*4)/(2!)

C(5,3) = (5*4)/(2*1)

C(5,3) = (20)/(2)

C(5,3) = 10


So C(5,3) or 5 C 3 is 10