LSAT-Section-1-Logical-Reasoning Section One : Logical Reasoning

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Showing 67–69 of 430 questions

Question 67

Linda says that, as a scientist, she knows that no scientist appreciates poetry. And, since most scientists are logical, at least some of the people who appreciate poetry are illogical.

Which one of the following is most parallel in its reasoning to the flawed reasoning above?

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  • Ralph says that, as an expert in biology, he knows that no marsupial lays eggs. And, since most marsupials are native to Australia, at least some of the animals native to Australia do not lay eggs.

  • Franz says that, as a father of four children, he knows that no father wants children to eat candy at bedtime. And, since most fathers are adults, at least some of the people who want children to eat candy at bedtime are children.

  • Yuri says that, as a wine connoisseur, he knows that no wine aged in metal containers is equal in quality to the best wine aged in oak. And, since most California wine is aged in metal containers, California wine is inferior to at least the best French wine aged in oak.

  • Xi says that, as an experienced photographer, she knows that no color film produces images as sharp as the best black-and-white film. And, since most instant film is color film, at least some instant film produces images less sharp than the best black-and-white film.

  • Betty says that, as a corporate executive, she knows that no corporate executives like to pay taxes. And, since most corporate executives are honest people, at least some people who like to pay taxes are honest people.

Question 68

Automobile-emission standards are enforced through annual inspection. At those inspections cars are tested while idling; that is, standing still with their engines running. Testing devices measure the levels of various pollutants as exhaust gases leave the tail pipe.

Which one of the following, if true, most strongly indicates that current enforcement of automobile-emission standards might be ineffective in controlling overall pollutant levels?

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  • As an emission-control technology approaches its limits, any additional gains in effectiveness become progressively more expensive.

  • The testing devices used must be recalibrated frequently to measure pollutant levels with acceptable accuracy.

  • The adjustments needed to make a car idle cleanly make it likely that the car will emit high levels of pollutants when moving at highway speeds.

  • Most car owners ask their mechanics to make sure that their cars are in compliance with emission standards.

  • When emission standards are set, no allowances are made for older cars.

Question 69

The indigenous people of Tasmania are clearly related to the indigenous people of Australia, but were separated from them when the land bridge between Australia and Tasmania disappeared approximately 10,000 years ago. Two thousand years after the disappearance of the land bridge, however, there were major differences between the culture and technology of the indigenous Tasmanians and those of the indigenous Australians. The indigenous Tasmanians, unlike their Australian relatives, had no domesticated dogs, fishing nets, polished stone tools, or hunting implements like the boomerang and the spear-thrower.

Each of the following, if true, would contribute to an explanation of differences described above EXCEPT:

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  • After the disappearance of the land bridge the indigenous Tasmanians simply abandoned certain practices and technologies that they had originally shared with their Australian relatives.

  • Devices such as the spear-thrower and the boomerang were developed by the indigenous Tasmanians more than 10,000 years ago.

  • Technological innovations such as fishing nets, polished stone tools, and so on, were imported to Australia by Polynesian explorers more recently than 10,000 years ago.

  • Indigenous people of Australia developed hunting implements like the boomerang and the spear-thrower after the disappearance of the land bridge.

  • Although the technological and cultural innovations were developed in Australia more than 10,000 years ago, they were developed by groups in northern Australia with whom the indigenous Tasmanians had no contact prior to the disappearance of the land bridge.