Results 1 to 2 of 2

Math Help - range of number of tries

  1. #1
    janet83
    Guest

    range of number of tries

    Hi all,
    Overall there are 16 weights, where 14 weights weigh the same and another 2 weights which also weigh the same but of different weight than the 14 weights. There is only one weighing scale, what is the range of number of tries to find out which is the 2 weights? My answer is from the range of 4 to 8. Anyone can get a smaller range? Please help!
    Thanks.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Member
    Joined
    Nov 2005
    From
    Wethersfield, CT
    Posts
    92
    Hi Janet:

    Let's identify the 14 items of like weight as A-weights, and the remaining two as B-weights. Now, you have proposed the existance of a method by which one might isolate the two b-weights following only four 'trips to the scale'. Would you kindly explain the methodology? Are we weighing only one item at a time? I propose the range at 5-14.

    Thank you.

    Rich B.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 1
    Last Post: January 16th 2012, 02:21 AM
  2. Range of a 3-digit number set is 000-999
    Posted in the Statistics Forum
    Replies: 4
    Last Post: February 15th 2011, 11:25 PM
  3. Replies: 7
    Last Post: April 13th 2009, 04:57 AM
  4. translate number range to percentage
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: March 12th 2008, 11:56 AM
  5. translate number range to percentage
    Posted in the Statistics Forum
    Replies: 1
    Last Post: March 12th 2008, 11:52 AM

/mathhelpforum @mathhelpforum