johnbrown1986
How many 3person groups can be formed in a club with 8 people?



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moneybird
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8C3?

jimmyrep
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8C3
= 8*7*6
 = 56
3*2*1

moneybird
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dw:1327956471334:dw

johnbrown1986
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thats the right answer but how did u form your formula?