edb071708 edb071708

06-07-2020
Mathematics

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There are 30 runners in a cross country race. How many different groups of runners can finish in the top 3 positions

Respuesta :

06-07-2020

30C3 = 4060 ...........

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tjdatruf tjdatruf

06-07-2020

10 groups of 3 the answer is 10

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