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16 April, 17:06

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

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  1. 16 April, 20:41
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    6 possibilities for the first letter, 5 possibilities for the second letter:

    combinations = 6·5 = 30
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