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

 It is currently 07 Jul 2015, 18:34

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

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

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Six qualified workers can cast 10.000 tons of raw copper in

Author Message
TAGS:
SVP
Joined: 03 Feb 2003
Posts: 1607
Followers: 7

Kudos [?]: 87 [0], given: 0

Six qualified workers can cast 10.000 tons of raw copper in [#permalink]  28 Jun 2003, 22:20
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 100% (00:00) wrong based on 1 sessions
Six qualified workers can cast 10.000 tons of raw copper in 2 hours. Two apprentices who work 2/3 as fast as a qualified worker are added to the group. Finally, the work is done. How much time has been saved due to the apprentices?
Manager
Joined: 24 Jun 2003
Posts: 146
Location: India
Followers: 1

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

PS: WORK [#permalink]  29 Jun 2003, 00:25
With the new workers, the 10.000 tons of raw copper can be cast in 1,63 hours as compared to 2 hours earlier. Therefore 0,37 hours have been saved
SVP
Joined: 03 Feb 2003
Posts: 1607
Followers: 7

Kudos [?]: 87 [0], given: 0

10000=6R2=(6R+4/3R)T, where T=18/11

The time saving = 2–(18/11)=4/11
Similar topics Replies Last post
Similar
Topics:
A worker can load 1 full truck in 6 hours. A second worker 2 30 Mar 2012, 12:29
Six qualified workers can cast 100 tons of raw copper in 2 3 26 May 2008, 01:35
4 A qualified worker digs a well in 5 hours. He invites 2 appr 18 04 Oct 2006, 07:14
In a group of 25 factory workers, 15 have brown eyes. Six of 5 03 Apr 2006, 21:05
Display posts from previous: Sort by