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15 September, 13:22

How many different three letters passwords can be formed from the letters A, B, C, D, E, and G if no repetition is allowed?

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  1. 15 September, 13:28
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    120

    Step-by-step explanation:

    There are 6 options for the first letter.

    Since no repetition is allowed, there are 5 options for the second letter.

    Finally, there are 4 options for the third letter.

    The number of possible passwords is:

    6 * 5 * 4 = 120
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