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# Margie and Maggie can finish the job together in 3 hours. If

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Senior Manager
Joined: 07 Oct 2003
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Margie and Maggie can finish the job together in 3 hours. If [#permalink]

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12 Jun 2004, 16:23
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Margie and Maggie can finish the job together in 3 hours. If Margie can do the job by herself in 5 hours, what percent of the job does Maggie do?

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Manager
Joined: 02 Jun 2004
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12 Jun 2004, 17:37
maggine in an hour = 1/3-1/5=2/15

magge/marie = (2/15/)(1/5) = 2/3

maggie does 33.3% of the job
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SVP
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12 Jun 2004, 20:52
Margie does 3/5th of the job and Maggie does 2/5th of the job in 3 hours
So Maggie does 40% of the job.

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Location: Russian Federation
Concentration: Entrepreneurship, International Business
GMAT 3: 740 Q40 V50
GMAT 4: 700 Q48 V38
GMAT 5: 710 Q45 V41
GMAT 6: 680 Q47 V36
GMAT 9: 740 Q49 V42
GMAT 11: 500 Q47 V33
GMAT 14: 760 Q49 V44
WE: Supply Chain Management (Energy and Utilities)

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13 Jun 2004, 00:39
Anand is correct. Question was percent of the whole job,not compared to each other's job.I should be careful with the question, on what exactly is asked. adding to my error list.

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Manager
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Posts: 154

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13 Jun 2004, 00:41
Anand is correct. Question was percent of the whole job,not compared to each other's job.I should be careful with the question, on what exactly is asked for.
Adding it to my error list.
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GS
No excuses - Need 750!!!

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Manager
Joined: 07 May 2004
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Location: Ukraine, Russia(part-time)
Re: common good [#permalink]

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13 Jun 2004, 03:42
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lastochka wrote:
Margie and Maggie can finish the job together in 3 hours. If Margie can do the job by herself in 5 hours, what percent of the job does Maggie do?

If Margie's productivity is Mr, Maggie's productivity is Mg, then 3(Mr + Mg) = V = 5(Mr). => 2Mr = 3Mg => Maggie's productivity is equal to 2/3*Mr => she does 40%.

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18 Jun 2004, 02:59
margie does1/5 th in one hr and both of them work for three hrs and so margie does 1/5 * 3 = 3/5 of the work ,
magie=3/5 - 1 = 2/5
=40%

hope that helps

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18 Jun 2004, 02:59
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# Margie and Maggie can finish the job together in 3 hours. If

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