Results 1 to 2 of 2

Math Help - rate problem

  1. #1
    Member
    Joined
    Jan 2008
    Posts
    173

    rate problem

    Three men can cut 72 trees in three hours. Because of a shortage of space, each time one man is added, each of the workers can cut one less tree per hour. How many trees can 5 men cut in 5 hours?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    Joined
    Dec 2007
    From
    Ottawa, Canada
    Posts
    3,080
    Thanks
    66
    Quote Originally Posted by sri340 View Post
    Three men can cut 72 trees in three hours. Because of a shortage of space, each time one man is added, each of the workers can cut one less tree per hour. How many trees can 5 men cut in 5 hours?
    3 men: each = 72/3 = 24 per 3 hours, hence 24/3 = 8 per hour

    5 men: each will be 8-2=6 per hour, so 5*6 = 30 per hour; 5*30 = 150 trees in 5 hours.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Rate Problem
    Posted in the Algebra Forum
    Replies: 0
    Last Post: July 17th 2011, 06:12 PM
  2. Rate Problem
    Posted in the Calculus Forum
    Replies: 1
    Last Post: November 9th 2009, 02:20 AM
  3. Rate Problem
    Posted in the Algebra Forum
    Replies: 2
    Last Post: September 17th 2009, 09:08 AM
  4. An initial value problem, and rate of change problem
    Posted in the Differential Equations Forum
    Replies: 4
    Last Post: October 1st 2008, 08:49 AM
  5. rate problem
    Posted in the Math Topics Forum
    Replies: 3
    Last Post: September 13th 2008, 04:50 PM

Search Tags


/mathhelpforum @mathhelpforum