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

It is currently 22 Aug 2014, 05:52

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

If pipe B fills a container at a constant rate in 100 minute

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Manager
Manager
avatar
Joined: 10 Sep 2012
Posts: 151
Followers: 2

Kudos [?]: 29 [0], given: 17

If pipe B fills a container at a constant rate in 100 minute [#permalink] New post 30 Nov 2012, 19:46
1
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

69% (02:05) correct 31% (01:08) wrong based on 102 sessions
If pipe B fills a container at a constant rate in 100 minutes, how many minutes does it take pipe A, working at is own constant rate, to fill the same container?

(1) Pipe A and pipe B together fill the container at (1/4) the time it takes pipe A alone.
(2) Pipe A and pipe B together fill the container at (3/4) the time it takes pipe B alone.


[Reveal] Spoiler:
I initially chose B because stat(1) gives us information that is relative to an unknown (A) So I wasn't sure how this would be sufficient.

agh, anyone have any insight?
[Reveal] Spoiler: OA
Intern
Intern
avatar
Joined: 07 Aug 2009
Posts: 2
Followers: 0

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

Re: If pipe B fills a container at a constant rate in 100 minute [#permalink] New post 30 Nov 2012, 20:23
Both are individually sufficient

Posted from my mobile device Image
Director
Director
User avatar
Status: Done with formalities.. and back..
Joined: 15 Sep 2012
Posts: 646
Location: India
Concentration: Strategy, General Management
Schools: Olin - Wash U - Class of 2015
WE: Information Technology (Computer Software)
Followers: 35

Kudos [?]: 355 [0], given: 23

GMAT ToolKit User Premium Member
Re: If pipe B fills a container at a constant rate in 100 minute [#permalink] New post 30 Nov 2012, 20:40
anon1 wrote:
Agh on a cold streak

If pipe B fills a container at a constant rate in 100 minutes, how many minutes does it take pipe A, working at is own constant rate, to fill the same container?
(1) Pipe A and pipe B together fill the container at (1/4) the time it takes pipe A alone.

(2) Pipe A and pipe B together fill the container at (3/4) the time it takes pipe B alone.


[Reveal] Spoiler:
I initially chose B because stat(1) gives us information that is relative to an unknown (A) So I wasn't sure how this would be sufficient.

agh, anyone have any insight?


For any such question of rate A , rate B and total rate T question remember the relation
1/T = 1/A + 1/B

Now question already gives you B =100
So eventually u have equation
1/T = 1/A + 1/100
And question is asking value of A. Which we can not find because of unknown T.

Now lets look at statements
Statement 1: Together it takes 1/4 time of A. => T = A/4. You just got the relation between A and T. You can surely solve the equation in question with this to get A.
Statement 2: Together it takes 3/4 time of B => T = 3B/4 and you already know B. so you know T. you can again solve the euqation in question with this to get A.

Hence ans D it is !
_________________

Lets Kudos!!! ;-)
Black Friday Debrief

Manager
Manager
avatar
Joined: 10 Sep 2012
Posts: 151
Followers: 2

Kudos [?]: 29 [0], given: 17

Re: If pipe B fills a container at a constant rate in 100 minute [#permalink] New post 02 Dec 2012, 08:19
For any such question of rate A , rate B and total rate T question remember the relation
1/T = 1/A + 1/B

That's right, the Master GMAT system didn't go through that. I better review this....
SVP
SVP
User avatar
Joined: 09 Sep 2013
Posts: 2102
Followers: 180

Kudos [?]: 35 [0], given: 0

Premium Member
Re: If pipe B fills a container at a constant rate in 100 minute [#permalink] New post 26 Jul 2014, 00:17
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________

GMAT Books | GMAT Club Tests | Best Prices on GMAT Courses | GMAT Mobile App | Math Resources | Verbal Resources

Re: If pipe B fills a container at a constant rate in 100 minute   [#permalink] 26 Jul 2014, 00:17
    Similar topics Author Replies Last post
Similar
Topics:
5 Experts publish their posts in the topic Pipe A can fill a tank in 32 minutes. Pipe B can fill the sa Safal 6 08 Apr 2014, 07:30
10 Experts publish their posts in the topic Working together at their constant rates, A and B can fill ksharma12 8 15 Jul 2010, 14:50
working together at their constant rates , A and B can fill test800 2 09 Jun 2010, 06:00
4 Pipe A will fill a tank in 24 minutes and pipe B will fill t aiming4mba 5 29 Apr 2010, 12:07
working together at their constant rates , A and B can fill arjtryarjtry 6 18 Jul 2008, 05:08
Display posts from previous: Sort by

If pipe B fills a container at a constant rate in 100 minute

  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®.