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B
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Difficulty:
45%
(medium)
Question Stats:
68% (01:50) correct
32%
(02:04)
wrong
based on 456
sessions
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Over the past five years, the amount of gasoline used for transportation per person per year has decreased. Over the same period, the number of cars per person has remained constant. Therefore, either the fuel efficiency of cars has increased, or the average distance driven per person has decreased, or both.
Which of the following is an assumption on which the argument depends?
A. There were no new gasoline powered buses purchased for use in public transportation
B. Alternatives to gasoline such as diesel or electricity have not become more common over the past five years
C. Other uses of gasoline besides transportation have an insignificant effect on the amount of gasoline used per person per year.
D. When surveyed, many people plan to reduce the distance they drive over the next five years
E. As compared to five years ago, a smaller proportion of all cars driven are older cars, which tend to be less fuel efficient than new cars.
Which of the following is an assumption on which the argument depends?
A. There were no new gasoline powered buses purchased for use in public transportation
B. Alternatives to gasoline such as diesel or electricity have not become more common over the past five years
C. Other uses of gasoline besides transportation have an insignificant effect on the amount of gasoline used per person per year.
D. When surveyed, many people plan to reduce the distance they drive over the next five years
E. As compared to five years ago, a smaller proportion of all cars driven are older cars, which tend to be less fuel efficient than new cars.
13 Dec 2023, 13:43
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RajathGK
The correct answer is (B).
(E) would explain what's going on, but the author doesn't have to assume (E).
For the argument to work, the author has to assume that there's not an alternative explanation, such as the one ruled out by (B).
