GMAT申友逻辑CR题库-Transportation expenses accounted for a large portion of the total dollar amount spent on trips for pleasure by-OG2022-真题答案解析

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Transportation expenses accounted for a large portion of the total dollar amount spent on trips for pleasure by residents of the United States in 1997, and about half of the total dollar amount spent on transportation was for airfare. However, the large majority of United States residents who took trips for pleasure in 1997 did not travel by airplane but used other means of transportation.

If the statements above are true, which of the following must also be true about United States residents who took trips for pleasure in 1997?

A. Most of those who traveled by airplane did so because the airfare to their destination was lower than the cost of other available means of transportation.

B. Most of those who traveled by airplane did so because other means of transportation to their destination were unavailable.

C. Per mile traveled, those who traveled by airplane tended to spend more on transportation to their destination than did those who used other means of transportation.

D. Overall, people who did not travel by airplane had lower average transportation expenses than people who did.

E. Those who traveled by airplane spent about as much, on average, on other means of transportation as they did on airfare.

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Situation In 1997, about half of total transportation spending by U.S. residents taking trips for pleasure was for airfare. But the large majority of U.S. residents who took trips for pleasure in 1997 did not travel by airplane. Reasoning What can be deduced from the stated facts? The information provided indicates that among U.S. residents who took trips for pleasure in 1997, those who traveled by airplane were a small minority. Yet this small minority’s spending for airfare accounted for half of all transportation spending among residents taking trips for pleasure. It follows that on average, those who traveled by airplane must have spent far more per person on transportation than those who did not travel by airplane.

A. This does not follow logically from the information given. Most of those who traveled by airplane may have done so even if flying was more expensive than other modes of transportation—for example, because flying was faster or more comfortable.

B. This does not follow from the information given. Most of those who traveled by airplane may have done so even if many other modes of transportation were available —the other modes may all have been less desirable.

C. This does not follow from the information given. Those who traveled by airplane may have traveled much farther on average than those who used other means of transportation, so their transportation spending per mile traveled need not have been greater.

D. Correct. As explained above, those who traveled by airplane must have spent more per person on transportation than those who did not travel by airplane, on average. In other words, those who did not travel by airplane must have had lower average transportation expenses than those who did.

E. This does not follow from the information given. Although half the total dollar spending on transportation was for airfare, much of the transportation spending that was not for airfare was by the large majority of U.S. residents who did not travel by airplane.

The correct answer is D.