Question 1173679
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Hi,
With a standard 52 card deck,  
52 cards:  26B , 26R
how many 5 card hands contain exactly 4 red cards?
Using Combinations:  nCr on Your calculator:  or {{{nCr = (n!)/(r!(n - r)!)}}}   
    (26C4)(26C1)
Wish You the Best in your Studies.