Question 880095
6*5*4*3 = 30*12 = 360


There are 360 ways to pick a group of 4 (from 6 people) if order matters.


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Since order doesn't matter, we divide by 4! = 4*3*2*1 = 24 to get


360/24 = 15


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There are <font color="red">15</font> different groups. Order does not matter.