
Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion 
 LinkBack  Thread Tools  Display Modes 
December 1st, 2013, 07:37 PM  #1 
Newbie Joined: Dec 2013 Posts: 2 Thanks: 0  Speed Word Problem.
John goes from A to B by car. Then he goes by motorcycle back from B to A. The time it took him to go from A to B and from B to A is 7 hours. Knowing that the motorcycle speed is 75% the speed of the car. Calculate the time it took him to go from A to B by car. 
December 1st, 2013, 08:08 PM  #2 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 10,891 Thanks: 716  Re: Speed Word Problem.
c=car speed, m=motorcycle speed, h = hours by car [A](@c)................ch....................>h[B] [A]7h<..............m(7h)..............(@m)[B] ch = m(7h) Substitute m = 3c/4 
December 28th, 2013, 05:32 PM  #3 
Global Moderator Joined: Dec 2006 Posts: 18,142 Thanks: 1417 
The car's time is 3/4 of the motorcycle's time (as they went the same distance). The times total 7 hours, so the car took 3 hours and the motorcycle took 4 hours. 

Tags 
problem, speed, word 
Search tags for this page 
Click on a term to search for related topics.

Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Find the ratio of his usual speed to his speed that day.  Chikis  Elementary Math  25  January 31st, 2014 09:48 AM 
Word Problem involving Speed and Distance  TomCadwallader  Elementary Math  3  October 29th, 2013 10:08 AM 
Linear Problem  Speed of a Jet  Tasha  Algebra  1  March 11th, 2010 05:20 PM 
Word speed problem  alikn  Elementary Math  3  December 15th, 2009 03:23 PM 
Speed problem  alikn  Physics  3  October 30th, 2009 04:53 PM 