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# GmatPrep: hard DS

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Senior Manager
Joined: 15 Jul 2006
Posts: 381
GmatPrep: hard DS [#permalink]

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28 Sep 2006, 16:06
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see attached, and please explain
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SVP
Joined: 05 Jul 2006
Posts: 1747

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28 Sep 2006, 16:15
company revenues = 500,000

total cost = m+l = x

profit = 500 ,000 - (m+l) is it >150,000

from one

x = 3m

thus l=2m ....insuff

from two

500,000 - (m+l) >l

500,000 -m > 2l.........insuff

both together

500,000 - m > 4m

ie 500,000 > 5m

ie m< 100,000 but x = 3m

thus 3m<300,000 and therfore

x<300,000 thus the profit will always be greater than 500,000 - 300,000 = 200,000

My answer is C
Manager
Joined: 25 May 2006
Posts: 227

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28 Sep 2006, 16:20
If I understand correctly....

Given:
Total given to the company=500k
C=L+M
Is 500k-C>150k???

St1:
C=3M
L+M=C --> L=2M
Hence, INSUFF

St2:
500k-C>L
Hence, INSUFF

Together INSUFF

Going with E
_________________

Who is John Galt?

Senior Manager
Joined: 15 Jul 2006
Posts: 381

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28 Sep 2006, 16:24
yezz got it again. the answer is C. I appreciate your quick response. I go tomorrow AM so I'm trying to go over some of the things I've gotten wrong in past
Manager
Joined: 25 May 2006
Posts: 227

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28 Sep 2006, 16:26
mmmm, thats rigth C it is.

Thanks yezz.
_________________

Who is John Galt?

SVP
Joined: 05 Jul 2006
Posts: 1747

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28 Sep 2006, 16:27
Our lady from the forum ( Econ girl) go get them and kick gmat's ***)

i ve been seeing your posts and responses .......you got wut it takes

i will wait for great news tomorrow ok........
Senior Manager
Joined: 15 Jul 2006
Posts: 381

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28 Sep 2006, 16:29
thanks yezz! let's hope so, I'll keep you all updated
Senior Manager
Joined: 13 Sep 2006
Posts: 279
Location: New York

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29 Sep 2006, 08:38
Best of luck Econgirl. Power to the ladies.
Senior Manager
Joined: 05 Jun 2005
Posts: 449

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29 Sep 2006, 13:14
Btw, she did kick %%% on the exam, check out the gmat experience section
29 Sep 2006, 13:14
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# GmatPrep: hard DS

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