Results 1 to 3 of 3

Math Help - percentage problem

  1. #1
    Newbie
    Joined
    Jan 2013
    From
    Philadelphia
    Posts
    6

    percentage problem

    A company did a study to determine the percent of books that were returned on time. Of the 2000 previously checked books, the number that was returned on time were 300 greater than the number that were not returned on time. what percent of the books in the study were returned on time? How would I set this up?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Senior Member
    Joined
    Mar 2008
    From
    Pennsylvania, USA
    Posts
    269
    Thanks
    37

    Re: percentage problem

    Let x be the number of books returned on time, so that (x-300) is the number of books NOT returned on time.

    x+(x-300)=2000 \implies 2x-300=2000 \implies 2x=2300 \implies x=\tfrac{2300}{2}=1150

    Since 1150 of the 2000 books were returned on time, the percentage of books returned on time is \frac{1150}{2000}\times 100\%
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Jan 2013
    From
    Philadelphia
    Posts
    6

    Re: percentage problem

    thank you. I received 57.5%
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Percentage problem
    Posted in the Algebra Forum
    Replies: 2
    Last Post: December 16th 2012, 05:31 PM
  2. Replies: 2
    Last Post: August 26th 2011, 10:19 PM
  3. Help with percentage problem please!
    Posted in the Algebra Forum
    Replies: 2
    Last Post: February 3rd 2010, 10:54 AM
  4. Percentage problem
    Posted in the Algebra Forum
    Replies: 4
    Last Post: September 3rd 2009, 06:16 PM
  5. Percentage problem
    Posted in the Algebra Forum
    Replies: 4
    Last Post: July 29th 2009, 05:15 PM

Search Tags


/mathhelpforum @mathhelpforum