Find all School-related info fast with the new School-Specific MBA Forum
Learn more about the recent changes... close

It is currently 25 May 2013, 13:44
Customize  |  Hide

Search
Register
New posts
Unanswered

If a car travels with a speed of 40 miles per hour for first

  Question banks Downloads My Bookmarks Reviews  
  Oldest Best Reply
Search for:
 
Print view
First unread post
Author Message
TAGS:
Senior Manager
Senior Manager
Joined: 20 Feb 2007
Posts: 271
Followers: 1

Kudos [?]: 2 [0], given: 0

GMAT Tests User
If a car travels with a speed of 40 miles per hour for first [#permalink] New post 14 Mar 2007, 03:05
If a car travels with a speed of 40 miles per hour for first 6 hours, and then 60 miles per hour for each additional hour. If during this whole journey it's average speed was 55 miles per hour, how many hours did it travel?
Director
Director
User avatar
Joined: 06 Feb 2006
Posts: 912
Followers: 1

Kudos [?]: 16 [0], given: 0

GMAT Tests User
 [#permalink] New post 14 Mar 2007, 03:12
(40*6+60*x)/x+6=55
240+60x=55x+330
5x=90
x=18

6+18=24
Senior Manager
Senior Manager
Joined: 20 Feb 2007
Posts: 271
Followers: 1

Kudos [?]: 2 [0], given: 0

GMAT Tests User
 [#permalink] New post 14 Mar 2007, 03:22
Oh....I don't know how I could not see it!

Somehow I wrote it 240+60x=55+330 :oops: and got it all wrong.....
Senior Manager
Senior Manager
Joined: 20 Feb 2007
Posts: 271
Followers: 1

Kudos [?]: 2 [0], given: 0

GMAT Tests User
 [#permalink] New post 14 Mar 2007, 03:24
I realized now my mistakes are limited to some silly stuff, solving the Qs correctly but being careless to write all the equations properly.....I must be very vary careful :)
  [#permalink] 14 Mar 2007, 03:24
    Similar topics Author Replies Last post
Similar
Topics:
 New posts To travel trip of 40 miles?the speed for the first Y miles Praetorian 4 22 Sep 2003, 14:19
New posts The average speed of a car decreased by 3 miles per hour wiseguy 3 08 Jan 2005, 14:37
New posts At a speed of 50 miles per hour, a certain car uses 1 gallon SimaQ 3 12 Nov 2006, 05:28
New posts The average speed of a car decreased by 3 miles per hour rdg 5 05 Mar 2007, 07:59
New posts 3 EXPERTS_POSTS_IN_THIS_TOPIC A cyclist travels 20 miles at a speed of 15 miles per hour. farukqmul 4 08 Jul 2012, 01:58
Display posts from previous: Sort by

If a car travels with a speed of 40 miles per hour for first

  Question banks Downloads My Bookmarks Reviews  
Print view
First unread post

Moderators: Bunuel, VeritasPrepKarishma

Search for:


GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group and phpBB SEO

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.

Main navigation

GMAT Resources

Partners

MBA Resources

www.gmac.com|www.mba.com