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1 January, 13:27

Only four people can serve on a committee. how many committees can be selected from a group of 6 people

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  1. 1 January, 13:55
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    15 committees can be selected from a group of 6 people: 6*5*4*3 / (4*3*2*1) = 15. This the same as considering 2 people who aren’t selected: 6*5 / (2*1) = 15.
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