SOLUTION: Mr. Edge needs 5 students, who will be arranged from tallest to shortest, for a demonstration. He has 21 students in his class. How many different combinations of students are poss

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Question 759812: Mr. Edge needs 5 students, who will be arranged from tallest to shortest, for a demonstration. He has 21 students in his class. How many different combinations of students are possible for the demonstration?
Answer by stanbon(75887) About Me  (Show Source):
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Mr. Edge needs 5 students, who will be arranged from tallest to shortest, for a demonstration. He has 21 students in his class. How many different combinations of students are possible for the demonstration?
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Ans: 21C5 = (21*20*19*18*17)/(1*2*3*4*5) = 20,349
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Cheers,
Stan H.
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