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03 Apr 2022, 06:30
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Studies have shown that an automobile that runs on a blend of 85% ethanol/15% gasoline gets better mileage than an otherwise similar car equipped with a gasoline engine. Many American legislators have concluded that an increase in tax incentives for ethanol production would lessen our dependence on foreign oil.
Which of the following, if true, casts the most doubt upon the validity of the legislators’ conclusion?
A. It takes 1.5 gallons of oil to produce 1 gallon of ethanol.
B. Electric cars are cheaper to operate than cars running on the ethanol fuel mix.
C. It costs thousands of dollars to retrofit an automobile to run on the ethanol fuel mix.
D. The ethanol/gasoline blend emits more pollution that regular gasoline.
E. The ethanol/gasoline blend has not been widely adopted in Europe.
Which of the following, if true, casts the most doubt upon the validity of the legislators’ conclusion?
A. It takes 1.5 gallons of oil to produce 1 gallon of ethanol.
B. Electric cars are cheaper to operate than cars running on the ethanol fuel mix.
C. It costs thousands of dollars to retrofit an automobile to run on the ethanol fuel mix.
D. The ethanol/gasoline blend emits more pollution that regular gasoline.
E. The ethanol/gasoline blend has not been widely adopted in Europe.
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10 Apr 2022, 05:14
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Argument:
As automobiles run on Ethanol and Gasoline are better than the ones running on just Gasoline. Then the Government should cut taxes on Ethanol production to reduce dependence on foreign oil.
We need to put this under the hammer:
Choice (A) does that nicely.
Explanation: If the production of Ethanol itself requires oil (that too 1.5 gallons of oil for 1 gallon of Ethanol), then with the new tax cuts, companies would be requiring more "gasoline" as an ingredient to enhance Ethanol production. In that case, the demand for Gasoline will increase. So, the idea that increase in tax incentives for ethanol production would lessen our dependence on foreign oil is weakened.
As automobiles run on Ethanol and Gasoline are better than the ones running on just Gasoline. Then the Government should cut taxes on Ethanol production to reduce dependence on foreign oil.
We need to put this under the hammer:
Choice (A) does that nicely.
Explanation: If the production of Ethanol itself requires oil (that too 1.5 gallons of oil for 1 gallon of Ethanol), then with the new tax cuts, companies would be requiring more "gasoline" as an ingredient to enhance Ethanol production. In that case, the demand for Gasoline will increase. So, the idea that increase in tax incentives for ethanol production would lessen our dependence on foreign oil is weakened.
01 May 2022, 10:15
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Bunuel
Studies have shown that an automobile that runs on a blend of 85% ethanol/15% gasoline gets better mileage than an otherwise similar car equipped with a gasoline engine. Many American legislators have concluded that an increase in tax incentives for ethanol production would lessen our dependence on foreign oil.
Which of the following, if true, casts the most doubt upon the validity of the legislators’ conclusion?
A. It takes 1.5 gallons of oil to produce 1 gallon of ethanol.
B. Electric cars are cheaper to operate than cars running on the ethanol fuel mix.
C. It costs thousands of dollars to retrofit an automobile to run on the ethanol fuel mix.
D. The ethanol/gasoline blend emits more pollution that regular gasoline.
E. The ethanol/gasoline blend has not been widely adopted in Europe.
Which of the following, if true, casts the most doubt upon the validity of the legislators’ conclusion?
A. It takes 1.5 gallons of oil to produce 1 gallon of ethanol.
B. Electric cars are cheaper to operate than cars running on the ethanol fuel mix.
C. It costs thousands of dollars to retrofit an automobile to run on the ethanol fuel mix.
D. The ethanol/gasoline blend emits more pollution that regular gasoline.
E. The ethanol/gasoline blend has not been widely adopted in Europe.
OFFICIAL EXPLANATION
The legislators want to promote ethanol production in order to lessen our dependence on foreign oil. Any evidence that ethanol production would not
lessen our dependence on foreign oil would undermine the legislators' conclusion.
(A) CORRECT. If it takes 1.5 gallons of oil to make 1 gallon of ethanol, it is not clear that producing ethanol can help us to reduce our reliance on foreign oil.
(B) As long as many drivers prefer not to switch to electric cars, it is possible that the ethanol fuel mix will come into widespread use.
(C) Although it may be expensive to retrofit a non-ethanol vehicle, ethanol-ready new vehicles might constitute a large potential market for subsidized ethanol.
(D) This answer choice is irrelevant because the argument does not mention pollution.
(E) Without any information as to why the ethanol/gasoline blend has not been widely adopted in Europe, we cannot reach any conclusions that are relevant to the United States.
