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

It is currently 22 Oct 2014, 22:39

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 is cycling from delhi to mumbai and B from mombai to

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Manager
Manager
avatar
Joined: 28 Jan 2004
Posts: 204
Location: India
Followers: 2

Kudos [?]: 10 [0], given: 4

A is cycling from delhi to mumbai and B from mombai to [#permalink] New post 10 Feb 2004, 23:45
A is cycling from delhi to mumbai and B from mombai to delhi(same route). they pass each other and then completed the journeys in 16 and 9 hours respectively. What is the ratio of there speeds.
Intern
Intern
avatar
Joined: 05 Feb 2004
Posts: 4
Location: INDIA
Followers: 0

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

 [#permalink] New post 11 Feb 2004, 01:32
I think the answer is 3/4 (ratio of the speeds of A and B).
Director
Director
avatar
Joined: 03 Jul 2003
Posts: 656
Followers: 2

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

Re: What is the ratio of speed [#permalink] New post 11 Feb 2004, 05:19
mdfrahim wrote:
they pass each other and then completed the journeys in 16 and 9 hours respectively. What is the ratio of there speeds.


Does this mean they took 16 and 9 houes to reach from starting
and ennding points, or they took 16 and 9 hours after meeting somewhere
in between?

If it is the later case, I think , the approach should be different.
Senior Manager
Senior Manager
avatar
Joined: 11 Nov 2003
Posts: 356
Location: Illinois
Followers: 1

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

 [#permalink] New post 11 Feb 2004, 07:55
amips2000 wrote:
I think the answer is 3/4 (ratio of the speeds of A and B).


This is the correct answer.

Please explain your logic.

Thanks
Manager
Manager
avatar
Joined: 16 Jan 2004
Posts: 65
Location: NJ
Followers: 1

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

 [#permalink] New post 11 Feb 2004, 08:15
Agree with kpadma

if the total time is9 and 16 hrs then the answer is 3/4.

but the questions states the time after they meet, in that case howcan the answer be 3/4.
Intern
Intern
avatar
Joined: 05 Feb 2004
Posts: 4
Location: INDIA
Followers: 0

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

 [#permalink] New post 11 Feb 2004, 08:17
Hi Gmatblast,
Here is the way I solved it.

B(ombay)..............M(eeting Point)..............................................D(elhi)


Let X with average speed of 'a' start from B and Y with average speed of 'b' start from D and meet at M.
Since both X and Y started simultaneously from B and D, they take the same time to travel the distance BM and MD respectively.
So, BM/a = DM/b ..........(1a)
BM/DM = a/b ..........(1)

Now X travels MD in 16 hours and Y travels MB in 9 hours.
So, MD/a = 16 ..............(2a)
MB/b = 9 ..............(2b)

Hence, BM/MD = (9/16)(b/a) ............(2)

From (1) and (2),

(a/b)^2 = (9/16)

or, (a/b) = (3/4)


I hope this helps.
Director
Director
avatar
Joined: 03 Jul 2003
Posts: 656
Followers: 2

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

 [#permalink] New post 11 Feb 2004, 08:26
amips2000 wrote:
Hi Gmatblast,
Here is the way I solved it.


I hope this helps.


Nice explanation! thanks!!
Senior Manager
Senior Manager
User avatar
Joined: 23 Aug 2003
Posts: 462
Location: In the middle of nowhere
Followers: 1

Kudos [?]: 11 [0], given: 0

 [#permalink] New post 11 Feb 2004, 09:17
Rakesh How did u get 9/16..I got the same.

Just used
Dist=Rate* Time

and since Dist is the same equated both the equations.

Vivek.
_________________

"Start By Doing What Is Necessary ,Then What Is Possible & Suddenly You Will Realise That You Are Doing The Impossible"

Manager
Manager
User avatar
Joined: 26 Dec 2003
Posts: 227
Location: India
Followers: 1

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

 [#permalink] New post 11 Feb 2004, 13:28
I think the question has to be modified. I thought the different way and Vivek I think we were sailing in the same boat for this question.
Manager
Manager
avatar
Joined: 28 Jan 2004
Posts: 204
Location: India
Followers: 2

Kudos [?]: 10 [0], given: 4

 [#permalink] New post 12 Feb 2004, 04:25
My sincere apologies for not being absolutely clear with the question.
The correct answer is 3:4.
They took 16 and 9 hrs. to reach the destination,after they meet!!!!!!!
  [#permalink] 12 Feb 2004, 04:25
    Similar topics Author Replies Last post
Similar
Topics:
1 Experts publish their posts in the topic Question for applicants from Mumbai University (Undergrad) rohitbizschool 3 04 Dec 2012, 23:04
Anybody from Delhi/NCR -> Indian B schools (2011-2012) punagr 1 02 Apr 2010, 02:49
It took Richard 1/2 hour to cycle from his house to the lordw 1 17 Aug 2008, 06:49
Hello! Anyone from Delhi India? scorpank 1 25 Apr 2006, 03:48
ppl from mumbai... jinesh 0 02 Dec 2005, 23:54
Display posts from previous: Sort by

A is cycling from delhi to mumbai and B from mombai to

  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®.