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  • 17-02-2021
  • Mathematics
contestada

how many four-character alpha-numeric codes are possible if repeated characters are not allowed?

Respuesta :

cwrw238 cwrw238
  • 17-02-2021

Answer:

1,413,720

Step-by-step explanation:

Total number of characters = letters + numbers

= 26 + 10

= 36.

So total number of possible codes

= 36P4

=  36!/ (36-4)!

= 36*35*34*33

= 1413720

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