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

It is currently 22 Oct 2014, 00:42

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 certain number of men complete a piece of work in 60 days.

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Director
Director
User avatar
Joined: 07 Jun 2004
Posts: 618
Location: PA
Followers: 3

Kudos [?]: 191 [0], given: 22

A certain number of men complete a piece of work in 60 days. [#permalink] New post 07 Jan 2005, 15:11
A certain number of men complete a piece of work in 60 days. IF there were 8 men more the work would have been completed in 10 days less. How many men were there originally .
VP
VP
avatar
Joined: 18 Nov 2004
Posts: 1447
Followers: 2

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

 [#permalink] New post 07 Jan 2005, 16:58
40.

If there are x workers in first case 1 man will take 60x. In second it will be 50(x+8)

60x = 50x + 400
x = 40
VP
VP
User avatar
Joined: 25 Nov 2004
Posts: 1497
Followers: 6

Kudos [?]: 31 [0], given: 0

 [#permalink] New post 07 Jan 2005, 22:16
suppose total number of men = x

x men can work a job in 60 days
x men can work 1/60 job in 1 day
1 man can work 1/60x in 1 day..........................1

x+8 can do the same job in 50 days
similarly,
1 man can do 1/50(x+8) job in 1 day ..............2

from 1 and 2, 1/60x = 1/50(x+8)

solving the equation, x = 40 men.
Director
Director
User avatar
Joined: 07 Jun 2004
Posts: 618
Location: PA
Followers: 3

Kudos [?]: 191 [0], given: 22

 [#permalink] New post 08 Jan 2005, 06:14
you guys are correct and great explnation

thanks!
Director
Director
User avatar
Joined: 21 Sep 2004
Posts: 619
Followers: 1

Kudos [?]: 5 [0], given: 0

 [#permalink] New post 09 Jan 2005, 09:09
40.
x-----60 days
x+8----50 days.
(x+8)50=60x
50x+400=60x
therefore, x=40.
Senior Manager
Senior Manager
avatar
Joined: 30 Dec 2004
Posts: 296
Location: California
Followers: 1

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

 [#permalink] New post 09 Jan 2005, 10:27
You guys give awesome explanations!....For some reason my brain turns off when it comes to these work problems :x
_________________

"No! Try not. Do. Or do not. There is no try.

Intern
Intern
avatar
Joined: 19 Dec 2004
Posts: 14
Followers: 0

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

 [#permalink] New post 27 Mar 2005, 20:36
Both of the first two explanations were great. Thanks.
  [#permalink] 27 Mar 2005, 20:36
    Similar topics Author Replies Last post
Similar
Topics:
2 Experts publish their posts in the topic A can complete a certain job in 12 days. B is 60% b2bt 1 02 Jun 2014, 06:09
4 Experts publish their posts in the topic If 6 men can do a piece of work in 30 days of 9 hours each, smartyman 4 15 Jan 2014, 22:50
4 Experts publish their posts in the topic A work crew of 4 Men takes 5 days to complete one-half of a Hussain15 9 13 Mar 2010, 08:24
If 15 men or 24 women or 35 boys do a piece of work in 12 anirban16 4 19 Mar 2005, 09:21
2 David completes 60% of an assigned task in 8 days and cloaked_vessel 18 06 Mar 2005, 15:39
Display posts from previous: Sort by

A certain number of men complete a piece of work in 60 days.

  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®.