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# If the forest continues to disappear at its present pace,

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If the forest continues to disappear at its present pace, [#permalink]

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30 Jan 2008, 04:21
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“If the forest continues to disappear at its present pace, the koala will approach extinction,” said the biologist.

“So all that is needed to save the koala is to stop deforestation,” said the politician.

Which one of the following statements is consistent with the biologist’s claim but not with the politician’s claim?

(A) Deforestation continues and the koala becomes extinct.
(B) Deforestation is stopped and the koala becomes extinct.
(C) Reforestation begins and the koala survives.
(D) Deforestation is slowed and the koala survives.
(E) Deforestation is slowed and the koala approaches extinction.

Explanation pls
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Neelabh Mahesh

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30 Jan 2008, 15:59

(A) Deforestation continues and the koala becomes extinct.
consistent with biologist not with politician
(B) Deforestation is stopped and the koala becomes extinct.
consistent with biologist not with politician
(C) Reforestation begins and the koala survives.
not consistent with biologist and not consistent politician
(D) Deforestation is slowed and the koala survives.
consistent with biologist consistent with politician
(E) Deforestation is slowed and the koala approaches extinction.
consistent with biologist no consistent with politician
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30 Jan 2008, 23:55
ill go for A
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31 Jan 2008, 17:28
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I'll go for B
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09 Feb 2008, 19:07
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What is the OA?
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10 Feb 2008, 01:35
1
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bhatia_ash2002 wrote:

(A) Deforestation continues and the koala becomes extinct.
consistent with biologist not with politician
(B) Deforestation is stopped and the koala becomes extinct.
consistent with biologist not with politician
(C) Reforestation begins and the koala survives.
not consistent with biologist and not consistent politician
(D) Deforestation is slowed and the koala survives.
consistent with biologist consistent with politician
(E) Deforestation is slowed and the koala approaches extinction.
consistent with biologist no consistent with politician

Shouldn't the answer be (E)? The question is asking for one that is consistent with biologist and not consistent with politician. I'm going with (E) - with the same reasoning as the above.
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10 Feb 2008, 04:16
B

“So all that is needed to save the koala is to stop deforestation,” said the politician.

(B) Deforestation is stopped and the koala becomes extinct. - only B contradicts directly politician.
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Manager
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10 Feb 2008, 05:32
walker wrote:
B

“So all that is needed to save the koala is to stop deforestation,” said the politician.

(B) Deforestation is stopped and the koala becomes extinct. - only B contradicts directly politician.

OA is B. but how is tht??
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Neelabh Mahesh

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10 Feb 2008, 07:27
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Expert's post
neelabhmahesh wrote:
OA is B. but how is tht??

Translate our problem to language of symbols

[x] - koala becomes extinct
not[x] - koala survives.
[p] - pace of forest disappearance
[pr] - present pace of forest disappearance

“If the forest continues to disappear at its present pace, the koala will approach extinction,” said the biologist.
“So all that is needed to save the koala is to stop deforestation,” said the politician.

the biologist: if [p]>=[pr] then [x]
the politician: if [p]=0 then not[x]

Which one of the following statements is consistent with the biologist’s claim but not with the politician’s claim?

the biologist: can be true
the politician: must be false

(A) Deforestation continues and the koala becomes extinct: [p]>0 (we don't know exactly a pace of deforestation) and not[x]: the biologist: can be true; the politician: can be true
(B) Deforestation is stopped and the koala becomes extinct: [p]=0 and [x]: the biologist: can be true; the politician: false
(C) Reforestation begins and the koala survives: [p]<0 and not[x]: the biologist: can be true; the politician: can be true
(D) Deforestation is slowed and the koala survives: [pr]>[p]>0 and not[x]: the biologist: can be true; the politician: true
(E) Deforestation is slowed and the koala approaches extinction. [pr]>[p]>0 and [x]: the biologist: can be true; the politician:can be true

Looks terrible but hope it help
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10 Feb 2008, 23:27
Walker: i thought the question was quite simple until you pulled your math moves...I got 'lost in translation'
when I see equations, my mind shuts off...because of you, I can't do any more gmat tonight
+1 for making me go to bed

walker wrote:
neelabhmahesh wrote:
OA is B. but how is tht??

Translate our problem to language of symbols

[x] - koala becomes extinct
not[x] - koala survives.
[p] - pace of forest disappearance
[pr] - present pace of forest disappearance

“If the forest continues to disappear at its present pace, the koala will approach extinction,” said the biologist.
“So all that is needed to save the koala is to stop deforestation,” said the politician.

the biologist: if [p]>=[pr] then [x]
the politician: if [p]=0 then not[x]

Which one of the following statements is consistent with the biologist’s claim but not with the politician’s claim?

the biologist: can be true
the politician: must be false

(A) Deforestation continues and the koala becomes extinct: [p]>0 (we don't know exactly a pace of deforestation) and not[x]: the biologist: can be true; the politician: can be true
(B) Deforestation is stopped and the koala becomes extinct: [p]=0 and [x]: the biologist: can be true; the politician: false
(C) Reforestation begins and the koala survives: [p]<0 and not[x]: the biologist: can be true; the politician: can be true
(D) Deforestation is slowed and the koala survives: [pr]>[p]>0 and not[x]: the biologist: can be true; the politician: true
(E) Deforestation is slowed and the koala approaches extinction. [pr]>[p]>0 and [x]: the biologist: can be true; the politician:can be true

Looks terrible but hope it help
CEO
Joined: 17 Nov 2007
Posts: 3586
Concentration: Entrepreneurship, Other
Schools: Chicago (Booth) - Class of 2011
GMAT 1: 750 Q50 V40
Followers: 573

Kudos [?]: 3968 [0], given: 360

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12 Feb 2008, 01:41
jay02 wrote:
Walker: i thought the question was quite simple until you pulled your math moves...I got 'lost in translation'
when I see equations, my mind shuts off...because of you, I can't do any more gmat tonight
+1 for making me go to bed

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Re: CR: Koala extinction   [#permalink] 12 Feb 2008, 01:41
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