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24-05-2021
Mathematics

contestada

how many 4 characters passwords can be created if using 3 letters and 1 digit and repetition is not allowed?

Respuesta :

cg2w4qhzdf cg2w4qhzdf

24-05-2021

Answer:

156000

Step-by-step explanation:

We have 3 letters and the repetition is not allowed and we have 26 letters

26*25*24=15600

And 1 digit that has 10 option

15600*10=156000

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