Results 1 to 3 of 3
Like Tree1Thanks
  • 1 Post By Plato

Math Help - Passwords problem

  1. #1
    Newbie
    Joined
    May 2013
    From
    California
    Posts
    2

    Passwords problem

    So there is a 4 digit password that can't use any zeros and can't repeat. The problem wants to know how many different passwords can be created using this method. I tried a decision chart of 8*7*6*5 but I could not come up with the right answer. How should I go about doing this problem?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor

    Joined
    Aug 2006
    Posts
    18,605
    Thanks
    1574
    Awards
    1

    Re: Passwords problem

    Quote Originally Posted by FnJewmo View Post
    So there is a 4 digit password that can't use any zeros and can't repeat. The problem wants to know how many different passwords can be created using this method. I tried a decision chart of 8*7*6*5 but I could not come up with the right answer. How should I go about doing this problem?
    Your mistake is in not realizing there are nine non-zero digits.
    You answer uses only eight.
    Thanks from MarkFL
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    May 2013
    From
    California
    Posts
    2

    Re: Passwords problem

    Oh my goodness I'm such a tool, thank you
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Eight character passwords
    Posted in the Discrete Math Forum
    Replies: 2
    Last Post: May 16th 2010, 06:45 AM
  2. Counting passwords
    Posted in the Discrete Math Forum
    Replies: 1
    Last Post: May 14th 2010, 03:27 PM
  3. Replies: 2
    Last Post: January 17th 2009, 02:40 AM

Search Tags


/mathhelpforum @mathhelpforum