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

It is currently 30 Aug 2016, 00:41
GMAT Club Tests

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

Frances can complete a job in 12 hours, and Joan can

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

1 KUDOS received
BSchool Thread Master
avatar
Joined: 19 Feb 2010
Posts: 401
Followers: 22

Kudos [?]: 161 [1] , given: 76

Frances can complete a job in 12 hours, and Joan can [#permalink]

Show Tags

New post 17 Sep 2010, 02:56
1
This post received
KUDOS
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

83% (02:17) correct 17% (00:52) wrong based on 142 sessions

HideShow timer Statistics

Frances can complete a job in 12 hours, and Joan can complete the same job in 8 hours. Frances starts the job at 9 a.m., and stops working at 3 p.m. If Joan starts working at 4 p.m. to complete the job, at what time is the job finished?

A. 6 p.m.
B. 7 p.m.
C. 8 p.m.
D. 10 p.m.
E. 12 p.m.
[Reveal] Spoiler: OA
Retired Moderator
User avatar
Joined: 02 Sep 2010
Posts: 805
Location: London
Followers: 101

Kudos [?]: 859 [0], given: 25

GMAT ToolKit User Reviews Badge
Re: Frances can complete a job in 12 hours [#permalink]

Show Tags

New post 17 Sep 2010, 02:59
By 3pm, half the job is complete, since Frances has worked fro 6h and it takes him 12h to complete the whole thing
Joan starts at 4pm, he needs only 4h to do 50% of the work (since he needs 8h for the full thing). So it finishes by 8pm

Ans : (C)
_________________

Math write-ups
1) Algebra-101 2) Sequences 3) Set combinatorics 4) 3-D geometry

My GMAT story

GMAT Club Premium Membership - big benefits and savings

Manager
Manager
User avatar
Joined: 18 Feb 2010
Posts: 174
Schools: ISB
Followers: 8

Kudos [?]: 184 [0], given: 0

Re: Frances can complete a job in 12 hours [#permalink]

Show Tags

New post 17 Sep 2010, 03:03
cano wrote:
Frances can complete a job in 12 hours, and Joan can complete the same job in 8 hours. Frances starts the job at 9 a.m., and stops working at 3 p.m. If Joan starts working at 4 p.m. to complete the job, at what time is the job finished?

A. 6 p.m.
B. 7 p.m.
C. 8 p.m.
D. 10 p.m.
E. 12 p.m.



I wish GMAT QUANT could have been such easy to have allowed me extra time to prepare for verbal !!!
_________________

CONSIDER AWARDING KUDOS IF MY POST HELPS !!!

Manager
Manager
avatar
Joined: 22 Jan 2012
Posts: 90
Location: India
Concentration: General Management, Technology
GMAT 1: Q39 V29
GPA: 3.3
WE: Engineering (Consulting)
Followers: 6

Kudos [?]: 88 [0], given: 9

Re: Frances can complete a job in 12 hours [#permalink]

Show Tags

New post 13 Mar 2012, 05:56
simple straight answer..
determine the induvidual rates (1/12 & 1/8 ) and calculate the corresponding hours.
it is four more hours from 4 pm so ans is 8 pm

hence C is the correct option
_________________

Press +1 Kudos rather than saying thanks
which is more helpful infact..

Ill be posting good questions as many as I can...

Towards Success

GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 09 Sep 2013
Posts: 11140
Followers: 511

Kudos [?]: 134 [0], given: 0

Premium Member
Re: Frances can complete a job in 12 hours, and Joan can [#permalink]

Show Tags

New post 30 Apr 2016, 23:56
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

Math Forum Moderator
User avatar
Status: Moving Towards Perfection Now
Joined: 11 Jun 2011
Posts: 1192
Location: India
Concentration: International Business, Finance
Schools: ISB
WE: Corporate Finance (Commercial Banking)
Followers: 32

Kudos [?]: 301 [0], given: 214

GMAT ToolKit User Premium Member CAT Tests
Re: Frances can complete a job in 12 hours, and Joan can [#permalink]

Show Tags

New post 01 May 2016, 02:06
cano wrote:
Frances can complete a job in 12 hours, and Joan can complete the same job in 8 hours. Frances starts the job at 9 a.m., and stops working at 3 p.m. If Joan starts working at 4 p.m. to complete the job, at what time is the job finished?

A. 6 p.m.
B. 7 p.m.
C. 8 p.m.
D. 10 p.m.
E. 12 p.m.


Let the total work be 24 units.

Frances can complete 2 units/hr
Joan can complete 3 units/hr

Quote:
Frances starts the job at 9 a.m., and stops working at 3 p.m.


Work done by Frances in 6 hours is 12 units ; work left for Joan is 12 units ( 24 - 12)

Time required by Jones to complete the remaining work will be 12/2 => 6 hours

Given Jones starts at 4PM , so she would complete the work at 10 PM

Answer will be (C)
_________________

Abhishek....

Re: Frances can complete a job in 12 hours, and Joan can   [#permalink] 01 May 2016, 02:06
    Similar topics Author Replies Last post
Similar
Topics:
3 Experts publish their posts in the topic A can complete a certain job in 12 days. B is 60% b2bt 4 02 Jun 2014, 07:09
30 Experts publish their posts in the topic Audrey 4 hours to complete a certain job. Ferris can do the gary391 15 02 Sep 2013, 11:17
86 Experts publish their posts in the topic Machine A can complete a certain job in x hours. Machine B enigma123 28 05 Nov 2011, 13:23
8 Experts publish their posts in the topic A can complete the job in 2 hours and B can complete the sam rxs0005 6 17 Mar 2011, 05:21
6 Experts publish their posts in the topic Machine A working alone can complete a job in 3 1/2 hours Lolaergasheva 7 08 Mar 2011, 02:23
Display posts from previous: Sort by

Frances can complete a job in 12 hours, and Joan can

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| 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®.