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Some geologists argue that if oil is as common in unsampled

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Director
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Some geologists argue that if oil is as common in unsampled [#permalink]

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17 Feb 2009, 19:03
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Some geologists argue that if oil is as common in unsampled areas of the world as it is in those already sampled, our current estimate of reserves that exist underground must be multiplied by a factor of 10,000. From this we can conclude that we can meet the oil needs of the entire world for at least five centuries, even assuming that future consumption grows at an accelerating rate.

To reach the stated conclusion, the author must assume which of the following?

(A) It is possible to recover the oil contained in unexplored areas of the world
(B) The consumption rate for oil will not grow rapidly
(C) Oil will remain an important energy source for at least 500 years
(D) The world will achieve and maintain zero population growth
(E) New technology will make oil discovery and drilling more feasible than ever before
[Reveal] Spoiler: OA

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Manager
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17 Feb 2009, 19:43
Some geologists argue that if oil is as common in unsampled areas of the world as it is in those already sampled, our current estimate of reserves that exist underground must be multiplied by a factor of 10,000. From this we can conclude that we can meet the oil needs of the entire world for at least five centuries, even assuming that future consumption grows at an accelerating rate.

To reach the stated conclusion, the author must assume which of the following?

A) It is possible to recover the oil contained in unexplored areas of the world
[Hold it]
B) The consumption rate for oil will not grow rapidly
[This is already taken into account . NEGATING it does not fail the conclusion]
C) Oil will remain an important energy source for at least 500 years
[Not possible, since if oil is not an energy source, conclusion is still valid]
D) The world will achieve and maintain zero population growth
[Out of scope- also even if future consumption grows its ok]
E) New technology will make oil discovery and drilling more feasible than ever before
[Out of scope]

Clear A.

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17 Feb 2009, 22:29
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Some geologists argue that if oil is as common in unsampled areas of the world as it is in those already sampled, our current estimate of reserves that exist underground must be multiplied by a factor of 10,000. From this we can conclude that we can meet the oil needs of the entire world for at least five centuries, even assuming that future consumption grows at an accelerating rate.

To reach the stated conclusion, the author must assume which of the following?

A) It is possible to recover the oil contained in unexplored areas of the world
B) The consumption rate for oil will not grow rapidly
C) Oil will remain an important energy source for at least 500 years
D) The world will achieve and maintain zero population growth
E) New technology will make oil discovery and drilling more feasible than ever before

I got this question from other forum and everybody is debating on OA....I also feel OA is wrong...can we discuss this question here?
Appreciate your help (managerial talks )

They key word here is "From this" we can conclude that we can meet the oil needs of the entire world for at least five centuries.

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17 Feb 2009, 22:41
ConkergMat wrote:
Some geologists argue that if oil is as common in unsampled areas of the world as it is in those already sampled, our current estimate of reserves that exist underground must be multiplied by a factor of 10,000. From this we can conclude that we can meet the oil needs of the entire world for at least five centuries, even assuming that future consumption grows at an accelerating rate.

To reach the stated conclusion, the author must assume which of the following?

A) It is possible to recover the oil contained in unexplored areas of the world
[Hold it]
B) The consumption rate for oil will not grow rapidly
[This is already taken into account . NEGATING it does not fail the conclusion]
C) Oil will remain an important energy source for at least 500 years
[Not possible, since if oil is not an energy source, conclusion is still valid]
D) The world will achieve and maintain zero population growth
[Out of scope- also even if future consumption grows its ok]
E) New technology will make oil discovery and drilling more feasible than ever before
[Out of scope]

Clear A.

I also agree with A

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Manager
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17 Feb 2009, 22:52
Its indeed A.
But would be interested to know why other people think why A could not be the answer.

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Manager
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17 Feb 2009, 23:10
I might be the only one, but I think the answer is E.

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18 Feb 2009, 00:05
Some geologists argue that if oil is as common in unsampled areas of the world as it is in those already sampled, our current estimate of reserves that exist underground must be multiplied by a factor of 10,000. From this we can conclude that we can meet the oil needs of the entire world for at least five centuries, even assuming that future consumption grows at an accelerating rate.

To reach the stated conclusion, the author must assume which of the following?

A) It is possible to recover the oil contained in unexplored areas of the world
B) The consumption rate for oil will not grow rapidly
C) Oil will remain an important energy source for at least 500 years
D) The world will achieve and maintain zero population growth
E) New technology will make oil discovery and drilling more feasible than ever before

I got this question from other forum and everybody is debating on OA....I also feel OA is wrong...can we discuss this question here?
Appreciate your help (managerial talks )

I also think it's A.

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Director
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18 Feb 2009, 07:33
Anwer is B....I don't understand the reason behind it

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Manager
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18 Feb 2009, 07:58
Answer is B....I don't understand the reason behind it

I don't see how it can be B - what is the source?

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VP
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18 Feb 2009, 09:01
it cant be B as the Q says even assuming that future consumption grows at an accelerating rate.

B is contradicting what the Q already assumes. Both of them are not needed right?

Do the negation test and A wins hands down

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18 Feb 2009, 20:09
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Impossible for B to be OA

Agree with A

Cheers,
Unplugged

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Director
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18 Feb 2009, 20:19
Source - http://www.urch.com/forums/gmat-critica ... ct-oa.html
peraspera wrote:
Answer is B....I don't understand the reason behind it

I don't see how it can be B - what is the source?

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Senior Manager
Status: Yeah well whatever.
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23 Dec 2009, 07:59
Both A and B must be assumed. Who wrote this stupid question? A must be assumed because without it they can’t meet the need. B must be assumed because the language of the passage literally says it is assumed for the conclusion. But what kind of question has two right answers? A) a stupid one or B) a trick one… you choose.
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He that is in me > he that is in the world. - source 1 John 4:4

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Senior Manager
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23 Dec 2009, 08:46
I usually hate it when people argue the OA, but in this case I must join the ranks! The answer appears to be a clear A.
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23 Dec 2009, 09:27
A for sure. B would be the first choice I would eliminate .
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Rock On

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Intern
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23 Dec 2009, 21:30
even I went for A.

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Intern
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23 Dec 2009, 21:45
The whole argument is dependent on RESERVE of oil. Even future generation will be able to use for next 5 or 10 centuries if there is reserve for oil.
So if there is reserve of oil but we are not able to drill it, then whats the use of that reserve. This clearly states that the correct answer.

Ans: A (200%)

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Manager
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24 Dec 2009, 09:45
This one is not really difficult, the OA is just wrong, the correct answer is A,
E is going to far, we haven't engouh information from the stimulus.

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Director
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24 Dec 2009, 23:32
A) It is possible to recover the oil contained in unexplored areas of the world

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25 Dec 2009, 17:41
my choice is A. Can someone explain why ans B is correct?

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Re: CR: Oil rate   [#permalink] 25 Dec 2009, 17:41

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