SOLUTION: How many different sets of 4 students can be chosen out of 17 qualified students to represent a school in a mathematics contest?
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Question 981949: How many different sets of 4 students can be chosen out of 17 qualified students to represent a school in a mathematics contest? Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! How many different sets of 4 students can be chosen out of 17 qualified students to represent a school in a mathematics contest?
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17*16*15*14 = 57120
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If all positions are equal, then ABC & D is the same as BAD & C
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--> divide by 4*3*2*1 = 24
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57120/24 = 2380 sets
