sweetone9376 sweetone9376
  • 04-06-2017
  • Mathematics
contestada

Using 5 letters followed by 2 ​digits, how many passwords are​ possible?

Respuesta :

mreijepatmat
mreijepatmat mreijepatmat
  • 04-06-2017
Since there is no condition whatsoever for this arrangement, I can consider the 2 digits and the 5 letters as 7 different objects.

Total permutation (with no repetition):
7 chosen among 7 , that is 7 ! = 5040 arrangements

Total permutation (WITH REPERTITION):

7⁷ = 823 543

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