bluewolf22
bluewolf22 bluewolf22
  • 29-04-2016
  • Mathematics
contestada

If No Digit Appears More Than Once, How Many 3-Digit Numbers Can Be Formed From The Digits 2, 3, 4, 6, And 7?? How Did You Receive That Answer??

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julius01
julius01 julius01
  • 29-04-2016
5P4 = 5!/(5-4)! = 5*4*3*2 = 120
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