Results 1 to 2 of 2

Math Help - COMBINATION PROBLEM - PLEASE HELP! I NEED ASAP

  1. #1
    Newbie
    Joined
    Oct 2008
    Posts
    12

    COMBINATION PROBLEM - PLEASE HELP! I NEED ASAP

    an urn contains 10 balls, bearing numbers 0 to 9
    3 balls are randomly drawn with replacemet (without replacement).

    By placing the numbers in row a in the order in which they are drawn, an integer 0 to 999 is formed. what is the probability that the number thus formed is divisible by 39. (regard 0 as being divisible by 39)
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by sabrina87 View Post
    an urn contains 10 balls, bearing numbers 0 to 9
    3 balls are randomly drawn with replacemet (without replacement).

    By placing the numbers in row a in the order in which they are drawn, an integer 0 to 999 is formed. what is the probability that the number thus formed is divisible by 39. (regard 0 as being divisible by 39)
    The total number of integers so formed is (10)(9)(8) = 720.

    How many of these integers (with distinct digits) are divisible by 39 .......? List them out:

    039, 078,

    156, 195, 234, 273, ......

    So the probability will be .....
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 3
    Last Post: June 5th 2010, 12:38 PM
  2. Bivariate problem need help asap
    Posted in the Advanced Statistics Forum
    Replies: 6
    Last Post: December 28th 2009, 09:54 PM
  3. pigeonhole problem ... ASAP please
    Posted in the Discrete Math Forum
    Replies: 2
    Last Post: October 29th 2008, 11:03 PM
  4. Word problem ... Please help ASAP
    Posted in the Algebra Forum
    Replies: 2
    Last Post: September 13th 2008, 10:11 AM
  5. [SOLVED] statistics problem need help ASAP please.
    Posted in the Statistics Forum
    Replies: 1
    Last Post: September 24th 2006, 01:16 PM

Search Tags


/mathhelpforum @mathhelpforum