Question 869925
 I have 7 CDs I want to select 4 to play in my car CD player. In how many ways can I select 4 of 7 CDs?
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You can choose 4 to play or 3 to not play::
Ans: 7C4 = 7C3 = (7*6*5)/(1*2*3) = 35 ways
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Cheers,
Stan H.
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