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In the past the country of Siduria has relied heavily on [#permalink]
 05 Feb 2005, 21:30
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In the past the country of Siduria has relied heavily on imported oil. Siduria recently implemented a program to convert heating systems from oil to natural gas. Siduria already produces more natural gas each year than it burns, and oil production in Sidurian oil fields is increasing at a steady pace. If these trends in fuel production and usage continue, therefore, Sidurian reliance on foreign sources for fuel should decline soon.
Which of the following is an assumption on which the argument depends?
A. In Siduria the rate of fuel consumption is rising no more quickly than the rate of fuel production.
B. Domestic production of natural gas is rising faster than is domestic production of oil in Siduria.
C. No fuel other than natural gas is expected to be used as a replacement for oil in Siduria.
D. Buildings cannot be heated by solar energy rather than by oil or natural gas.
E. All new homes that are being built will have natural-gas-burning heating systems.
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A.
B. Domestic production of natural gas is rising faster than is domestic production of oil in Siduria.
C. No fuel other than natural gas is expected to be used as a replacement for oil in Siduria.
D. Buildings cannot be heated by solar energy rather than by oil or natural gas.
E. All new homes that are being built will have natural-gas-burning heating systems.
B,C, D,E cannot be assumed from the stem.
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I agree with (A).
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B. It says Siduria will convert heating systems from oil to natural gas. Natural gas can replace oil only if it's production is more than that of oil.
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agree with A. if the rate of fuel consumption is rising more quickly than the rate of fuel production, then Siduria's import of oil/fuel wont decline.
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sonaketu wrote: B. It says Siduria will convert heating systems from oil to natural gas. Natural gas can replace oil only if it's production is more than that of oil.
Hello, sonaketu,
The conclusion is whether Sidurian will rely on foreign sources or not.
Therefore, we don't need to care about which one produce more?
If oil > gas or gas < oil, it may need to import or may not. It depends on consumption.
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I don't understand this one.
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Hi,
I doubt A because they have asked, which is an assumption. And as I understand, assumption wouldnot be stated in the passage, however the following statement from passage says production > consumption.
Siduria already produces more natural gas each year than it burns, and oil production in Sidurian oil fields is increasing at a steady pace.
Then how can A be an assumption?
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(C)
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I will go with E. I do not think it is 'A' becos A is stated in the passage
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Re: CR Siduria OIL [#permalink]
07 Feb 2005, 08:46
Fact: the country imports oil heavily in the past
Fact: it is now switching some oil consumption to gas consumption
Fact: gas consumption currently is less than gas production
Fact: oil production is increasing at a steady pace
Conclusion: oil import will decline
Assumption, oil consumption will not increase more rapidly than oil production
The passage stated that oil production is increasing, and indicated some methods that the country adopted to curb the increase in oil consumption. However if oil consumption continues to increase rapidly even after switching the heating system, then the conclusion will not hold. In other words, the assumption is that after all is done the oil consumption will not increase as rapidly as the oil production.
B does not necessarily have to be true. Gas production rate has nothing to do with oil import. It may be true that gas consumption increases very slowly, or maybe the country needs to import natual gas, whatever, it doesn't say anything about oil imports.
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"E".
A, C, E are all kinda stated in the stem. If it is in the stem already, it can't be considered an assumption. However, "E" is not stated explicitly for new homes in the stem, it says program is to convert the exisiting ones. So I pick closest to an assumption is "E".
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The oil imports can still decline if if not all homes are with natural gas heating systems. This is not an assumption that must be hold for the conclusion to be true.
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HongHu wrote: The oil imports can still decline if if not all homes are with natural gas heating systems. This is not an assumption that must be hold for the conclusion to be true.
If these trends in fuel production and usage continue, therefore, Sidurian reliance on foreign sources for fuel should decline soon.
Hong, stem clearly says that "if" this trend of usage continues, then oil imports will decline, which is what "A" is saying. "A" can't be an assumption as author clearly states it as a "condition", he is already aware of this condition. I think assumptions can't be already stated by the author in the stem.
Do we have the OA yet ?
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I also think it's A
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Re: CR Siduria OIL [#permalink]
07 Feb 2005, 13:07
DLMD wrote: In the past the country of Siduria has relied heavily on imported oil. Siduria recently implemented a program to convert heating systems from oil to natural gas. Siduria already produces more natural gas each year than it burns, and oil production in Sidurian oil fields is increasing at a steady pace. If these trends in fuel production and usage continue, therefore, Sidurian reliance on foreign sources for fuel should decline soon.
Which of the following is an assumption on which the argument depends?
A. In Siduria the rate of fuel consumption is rising no more quickly than the rate of fuel production.
B. Domestic production of natural gas is rising faster than is domestic production of oil in Siduria.
C. No fuel other than natural gas is expected to be used as a replacement for oil in Siduria.
D. Buildings cannot be heated by solar energy rather than by oil or natural gas.
E. All new homes that are being built will have natural-gas-burning heating systems.
B: it does not matter even if natural gas production is faster than oil production. What matters is increase in rate of natural gas consumption and rate of oil consumption in comparison to rate of production. Hence even if it is stated that Domestic production of natural gas is rising slower than that of oil, it makes no difference to the conclusion.
C: Could be a possibility. Conclusion states that "Sidurian reliance on foreign sources for fuel" should decline soon. Howver if another replacement is expected to be used (negating the assumption) then it is possible that this still has to be imported. However, this statement goes out of context of the passage which mainly talks about natural gas and oil and gives no information about other fuel. Hence C is wrong.
D: Is again out of context as stem does not mention solar energy.
E: This reinforces one of the evidences about Sidurians changing to natural gas. However it does nothing to lead to the conclusion.
Hence the correct answer is A. IF we negate this statement, this will state that rate of consumption is more than rate of production. In order to meet the consumption, Siduria will have to import fuel. Hence the conclusion can be made only if this assumption is true.
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OA please.
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banerjeea_98 wrote: Hong, stem clearly says that "if" this trend of usage continues, then oil imports will decline, which is what "A" is saying. "A" can't be an assumption as author clearly states it as a "condition", he is already aware of this condition. I think assumptions can't be already stated by the author in the stem.
Do we have the OA yet ?
The trends refer to the ones he specifically mentioned, but there could be other factors not mentioned that may or may not increase the oil consumption faster?
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the OA is A.
I think it's pretty obvious to see in order to have less import, there must be surplus, which means production > consumption, so A is the answer.
to me, I think C is really close, I almost chose C, but I realize even there are other substitue for oil other than gas, it has nothing to do with import/export.
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HongHu wrote: banerjeea_98 wrote: Hong, stem clearly says that "if" this trend of usage continues, then oil imports will decline, which is what "A" is saying. "A" can't be an assumption as author clearly states it as a "condition", he is already aware of this condition. I think assumptions can't be already stated by the author in the stem.
Do we have the OA yet ? The trends refer to the ones he specifically mentioned, but there could be other factors not mentioned that may or may not increase the oil consumption faster? Trends clearly talks abt trend in fuel consumption and fuel production, author himself is saying that the trend of fuel consumption and production has to remain the same in the future for his conclusion to be valid i.e. consumption can't suddenly increase or production can't suddenly decrease. He is saying that explicitly and not assuming anything here, I am not convinced with the OA, wud be nice to know the source though.
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