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Posted by on Friday, December 7, 2012 at 8:39pm.

How many computer passwords can be created with three digits followed by three letters if the first number cannot be 0 or no number or letter can be repeated?

  • Probability(math) - , Friday, December 7, 2012 at 11:42pm

    9*9*8 * 26*25*24 = 10108800

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