Results 1 to 2 of 2

Math Help - Cross Multiplication - Straight Multiplication of Complex Word Problems..

  1. #1
    Member
    Joined
    May 2012
    From
    Arizona
    Posts
    79

    Cross Multiplication - Straight Multiplication of Complex Word Problems..

    I am currently solving some Standardized test questions involving ratio rates.
    I managed to solve cross multiplication word problems involving two columns which ended with something like
    3 : 5
    4 : x
    so we get something like 3x = 20
    I remember i also was (good) in solving problems with more than two columns something like
    Men days Work
    6 10 1/3
    4 x 2/3
    Which ended with equations like
    6x10x2/3= 4x X x (1/3)

    The above is just a part of an example. Does anyone know how you solve problems like the ones above with more than 2 columns ? Any suggested reading material that highlights the above trick ? What is this trick called ??
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor

    Joined
    Apr 2005
    Posts
    16,232
    Thanks
    1795

    Re: Cross Multiplication - Straight Multiplication of Complex Word Problems..

    It would help if you would tell us what the problems really are. It seems like you are talking about some half remembered methods of solving some kind of problem. What does the problem say?
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Rearrange by cross multiplication
    Posted in the Algebra Forum
    Replies: 1
    Last Post: April 19th 2012, 01:42 PM
  2. Replies: 8
    Last Post: February 23rd 2011, 08:04 AM
  3. Multiplication of complex numbers
    Posted in the Algebra Forum
    Replies: 2
    Last Post: December 27th 2008, 12:44 PM
  4. complex multiplication
    Posted in the Algebra Forum
    Replies: 1
    Last Post: December 14th 2006, 02:23 PM
  5. Complex Roots/Multiplication
    Posted in the Algebra Forum
    Replies: 2
    Last Post: July 23rd 2006, 10:44 AM

Search Tags


/mathhelpforum @mathhelpforum