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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
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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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65% (hard)

Question Stats:

33% (02:14) correct 67% (00:51) wrong based on 33 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)
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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10 Nov 2010, 10:33
Think the OA is wrong. Statement 2 is also sufficient.

Correct answer should be D
Intern
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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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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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Get started with Veritas Prep GMAT On Demand for $199 Veritas Prep Reviews Manager Joined: 09 Jun 2010 Posts: 116 Followers: 2 Kudos [?]: 103 [1] , given: 1 Re: Doggies [#permalink] ### Show Tags 10 Nov 2010, 20:20 1 This post received KUDOS Got tricked. Senior Manager Status: swimming against the current Joined: 24 Jul 2009 Posts: 252 Location: Chennai, India Followers: 4 Kudos [?]: 88 [1] , given: 30 Re: Doggies [#permalink] ### Show Tags 11 Nov 2010, 07:57 1 This post received KUDOS I love such twisters A _________________ Gonna make it this time Manager Joined: 07 Jan 2010 Posts: 147 Location: So. CA WE 1: 2 IT WE 2: 4 Software Analyst Followers: 2 Kudos [?]: 59 [0], given: 57 Re: Doggies [#permalink] ### Show Tags 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 Manager Joined: 19 Aug 2010 Posts: 77 Followers: 3 Kudos [?]: 24 [0], given: 2 Re: Doggies [#permalink] ### Show Tags 13 Nov 2010, 13:00 I like that one!Good question Re: Doggies [#permalink] 13 Nov 2010, 13:00 Similar topics Replies Last post Similar Topics: 1 Tom invested$100,000 with yearly compound interest of x% and some oth 1 07 Oct 2016, 09:59
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# Of 100 dogs at an animal shelter, some are doxin and the

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