edb071708 edb071708
  • 06-07-2020
  • Mathematics
contestada

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

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amilin
amilin amilin
  • 06-07-2020
30C3 = 4060 ...........
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tjdatruf
tjdatruf tjdatruf
  • 06-07-2020
10 groups of 3 the answer is 10
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