Seven workers from the first group have to pan out 100 tons

Oldest

Best Reply

Author

Message

TAGS:

Eternal Intern

Joined: 07 Jun 2003

Posts: 484

Location: Lone Star State

Followers: 1

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

Seven workers from the first group have to pan out 100 tons [#permalink]

15 Jul 2003, 18:23

Seven workers from the first group have to pan out 100 tons of auriferous ore. The second group consists of four workers, two apprentices, and one master who work 1/3 and 1┬╜ as fast as does a worker accordingly. The second group has to pan out the same pile of ore. Find a ratio of the time that the first group needs to have the work done to the time that the second group needs.

Is Work Done= 100 piles of ore?

GMAT Instructor

Joined: 07 Jul 2003

Posts: 773

Location: New York NY 10024

Schools: Haas, MFE; Anderson, MBA; USC, MSEE

Followers: 5

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

Re: Stolyar [#permalink]

15 Jul 2003, 23:22

Curly05 wrote:

[I believe the ratio will be 1:2 (the second group will take twice as long as the first group to do the same job). If you are clever, you should be able to solve this in your head.] Cancel - I had a mind fart. Answer should be 37:42.
_________________

Best,

AkamaiBrah
Former Senior Instructor, Manhattan GMAT and VeritasPrep
Vice President, Midtown NYC Investment Bank, Structured Finance IT
MFE, Haas School of Business, UC Berkeley, Class of 2005
MBA, Anderson School of Management, UCLA, Class of 1993

Last edited by AkamaiBrah on 15 Jul 2003, 23:51, edited 1 time in total.

SVP

Joined: 03 Feb 2003

Posts: 1683

Followers: 4

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

[#permalink]

15 Jul 2003, 23:36

R is a rate of a "standard" worker.
R/3 is that of an apprentice
3R/2 is that of a master

Work=Rate*Time

the first group) 100=7Rt, where t is the time they need
the second group) 100=(4R+2/3R+3/2R)T, where T is the time they need

t/T= (4R+2/3R+3/2R)/7R=37/42

GMAT Instructor

Joined: 07 Jul 2003

Posts: 773

Location: New York NY 10024

Schools: Haas, MFE; Anderson, MBA; USC, MSEE

Followers: 5

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

Re: Stolyar [#permalink]

15 Jul 2003, 23:50

AkamaiBrah wrote:

Curly05 wrote:

I believe the ratio will be 1:2 (the second group will take twice as long as the first group to do the same job). If you are clever, you should be able to solve this in your head.

Oops, my bad. I misread the problem to read that there were 4 total workers, of which 2 were apprentices and 1 was a master.

I agree with Stolyar's ratio: 37:42
_________________

Manager

Joined: 08 Apr 2003

Posts: 153

Followers: 1

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

[#permalink]

16 Jul 2003, 03:09

same here...

37:42.

[#permalink] 16 Jul 2003, 03:09

	Similar topics	Author	Replies	Last post
Similar Topics:	Out of a certain group of 100 people, 65 have a Volkswagen	skoper	12	13 Jun 2003, 00:42
	Seven workers from the first group have to pan out 100 tons	stolyar	1	28 Jun 2003, 23:35
	This caught my attention Stolyar. Seven workers from the	Curly05	3	02 Aug 2003, 10:37
	A group of four women and three men have tickets for seven	bkk145	4	15 Aug 2007, 19:17
	Six qualified workers can cast 100 tons of raw copper in 2	prasannar	3	26 May 2008, 02:35

Seven workers from the first group have to pan out 100 tons

Main navigation

GMAT Resources

Partners

MBA Resources

GMAT ® is a registered trademark of the Graduate Management Admission Council ® (GMAC ®). GMAT Club's website has not been reviewed or endorsed by GMAC.

GMAT Courses

Admissions Consulting

Seven workers from the first group have to pan out 100 tons

Seven workers from the first group have to pan out 100 tons

Main navigation

GMAT Resources

Partners

MBA Resources