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# Of 100 dogs at an animal shelter, some are doxin and the

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Director
Joined: 07 Jun 2004
Posts: 610

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Of 100 dogs at an animal shelter, some are doxin and the [#permalink]

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10 Nov 2010, 04:47
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Difficulty:

75% (hard)

Question Stats:

36% (01:11) correct 64% (00:57) wrong based on 50 sessions

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Of 100 dogs at an animal shelter, some are doxin and the rest are poodles. If all the dogs at the shelter are adopted, how many of the doxin were adopted?

(1) Two-thirds as many poodles as doxin were adopted.

(2) The difference between the number of poodles adopted and the number of doxin adopted is 20.
[Reveal] Spoiler: OA

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Manager
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10 Nov 2010, 06:38
Opt A)
Given:
poodles - x
dioxins -2/3(x)

2/3(x)+x = 100
5/3(x) = 100
5x = 300
x = 60

Opt - A)

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Director
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10 Nov 2010, 10:21
we have d + p = 100

from S2 we get p - d = 20 ( not d-p =20 )

from this we can get d why is S2 not sufficient by itself
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Manager
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10 Nov 2010, 10:33
Think the OA is wrong. Statement 2 is also sufficient.

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Intern
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Joined: 25 Oct 2010
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10 Nov 2010, 15:47
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Statement II states that the DIFFERENCE between the poodles and the doxin is 20...

In this case, shouldnt there be 2 possibilities?
Case 1: 60 poodles 40 doxin
Case 2: 40 poodles 60 doxin

difference either way is 20....Im taking this question to mean absolute difference..

Statement II insufficient...Is that right??

Casey--then again,Im a newbie just 2 weeks in to studying...what do I know

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Joined: 16 Oct 2010
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10 Nov 2010, 19:23
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Expert's post
baker2145 wrote:
Statement II states that the DIFFERENCE between the poodles and the doxin is 20...

In this case, shouldnt there be 2 possibilities?
Case 1: 60 poodles 40 doxin
Case 2: 40 poodles 60 doxin

difference either way is 20....Im taking this question to mean absolute difference..

Statement II insufficient...Is that right??

Casey--then again,Im a newbie just 2 weeks in to studying...what do I know

Newbie or not, you are absolutely right baker2145. Difference means it could be d - p or p - d, hence you cannot find the exact number.
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Manager
Joined: 09 Jun 2010
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10 Nov 2010, 20:20
1
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Got tricked.

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Manager
Status: swimming against the current
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11 Nov 2010, 07:57
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I love such twisters A
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Gonna make it this time

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Manager
Joined: 07 Jan 2010
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Location: So. CA
WE 1: 2 IT
WE 2: 4 Software Analyst

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13 Nov 2010, 12:51
baker2145 wrote:
Statement II states that the DIFFERENCE between the poodles and the doxin is 20...

In this case, shouldnt there be 2 possibilities?
Case 1: 60 poodles 40 doxin
Case 2: 40 poodles 60 doxin

difference either way is 20....Im taking this question to mean absolute difference..

Statement II insufficient...Is that right??

Casey--then again,Im a newbie just 2 weeks in to studying...what do I know

ah i got tricked into (D) but good explanation, +1 for you

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Manager
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13 Nov 2010, 13:00
I like that one!Good question

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Re: Of 100 dogs at an animal shelter, some are doxin and the [#permalink]

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29 Sep 2017, 23:52
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Of 100 dogs at an animal shelter, some are doxin and the   [#permalink] 29 Sep 2017, 23:52
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