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9 November, 18:24

Rafael is choosing a 2-letter password from the letters A, B, C, D, and E. The password cannot have the same letter repeated in it. How many such passwords are possible?

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  1. 9 November, 18:41
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    there are 6 available passwords.

    Step-by-step explanation: abcd

    there are:

    ab

    cd

    bc

    da

    dc

    ca

    bd

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