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8 September, 07:07

How many six-digit passwords can you create if you use only numbers 1,2,3,4,5,6,7,8,9 without repetition?

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  1. 8 September, 07:11
    0
    60480

    Step-by-step explanation:

    total number (n) = 9

    r = 6

    9P6 = 9! / (9-6) !

    = 9*8*7*6*5*4*3! / 3!

    = 3! cancels out

    = 9*8*7*6*5*4

    = 60480
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