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lia3865
20.07.2019 •
Mathematics
There are 10 people on a team. 5 are chosen. which expression gives number of ways
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Ответ:
Number of ways to select 5 = Total number C Number to be chosen. Where "C" stands for combination
Substituting;
Number of ways to select 5 from 10 people = 10C5 = 10!/{5!*(10-5)!} = 10!/(5!*5!) = 252 ways
Ответ:
Remember: "5 or more raise the score, 4 or less let it rest"
56 estimation up 60
27 estimation up 30
Then you do the equation:
60 * 30 = 1800