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Eight two-person teams are participating in a three-legged race. Find the number of orders in which all 8 teams can finish the race.
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Sep 13, 2018
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Eight two-person teams are participating in a three-legged race. Find the number of orders in which all 8 teams can finish the race.
Mathematics
high-school
Anaxin
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Answer:
thx for points man
Explanation:
Tdimmig
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Sep 15, 2018
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Tdimmig
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Each team needs two people for a 3-legged race.
Therefore, the number of orders (combinations) of 2 people at a time from 8 is
₈C₂ = 8!/(2!6!)
= (8*7*6!)/(2*6!)
= (8*7)/2
= 56/2
= 28
Answer: 28
Amit Desale
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Sep 20, 2018
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Amit Desale
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