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  • 12-05-2018
  • Mathematics
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A combination lock will open when the right choice of three numbers, from 1 to 30, is selected. how many

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Аноним Аноним
  • 12-05-2018
Number of ways (if repeats of numbers are allowed) = 30 x 30 x 30 = 27000

Number of ways (if repeats of numbers are not allowed) = 30 x 29 x 29 = 24360
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