Find all School-related info fast with the new School-Specific MBA Forum

It is currently 16 Apr 2014, 12:04

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

A train travels from a station B to station C using path P,

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Manager
Manager
Joined: 04 Dec 2005
Posts: 79
Followers: 1

Kudos [?]: 1 [0], given: 0

A train travels from a station B to station C using path P, [#permalink] New post 17 Jan 2007, 12:45
A train travels from a station B to station C using path P, while it returns using a different path. If the average speed on path P is 60km/hr, what is the average speed for the round trip?
1) The average speed on the back trip is 2/3 of the average speed on path P
2) The path P is 1/3 times longer than that of the back route.
Senior Manager
Senior Manager
Joined: 24 Oct 2006
Posts: 342
Followers: 1

Kudos [?]: 13 [0], given: 0

GMAT Tests User
 [#permalink] New post 18 Jan 2007, 19:36
Avg speed =total dist d/total time t

speed s of p=60

S1:s of back trip b=2/3 of p=40
since we can't find t and d - insuff

S2:d of p=4x/3 where x = d of b
t of p=d/s=(4x/3)/60=x/45
since we do not any other details about b - inuff

Together:
t of b=x/40
total d=x+(4x/3)=7x/3
total t=(x/40)+(x/45)
Since we can calculate total t and total d - suff

My ans is C
Senior Manager
Senior Manager
Joined: 19 Jul 2006
Posts: 363
Followers: 1

Kudos [?]: 1 [0], given: 0

GMAT Tests User
 [#permalink] New post 20 Jan 2007, 07:58
C .. agree with sumithra
  [#permalink] 20 Jan 2007, 07:58
    Similar topics Author Replies Last post
Similar
Topics:
Popular new posts Train A leaves Station 1 and train B leaves station 2, 120 GK_Gmat 13 04 Jul 2007, 00:40
New posts A train traveled from station X to station Y at a constant singh_amit19 4 24 Sep 2007, 12:15
New posts A train traveled from station X to station Y at a constant seofah 2 09 Nov 2008, 07:10
New posts 2 A train travels from station A to station B. If it travels Pansi 5 16 Sep 2012, 01:48
New posts 2 Experts publish their posts in the topic Train A left station T at 3:30 p.m. and traveled on straight mohnish104 1 28 Dec 2013, 04:29
Display posts from previous: Sort by

A train travels from a station B to station C using path P,

  Question banks Downloads My Bookmarks Reviews Important topics  


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®.