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24 August, 10:41

Raina is choosing a

3

-letter password from the letters A, B, C, and D. The password cannot have the same letter repeated in it. How many such passwords are possible?

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Answers (1)
  1. 24 August, 11:51
    0
    Raina can have a total of 16 passwords, but I am 99% sure of that answer.
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