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

Question 346

Few animals brave the midday heat of the Sahara Desert. An exception is the silver ant, which chooses this time of day to leave its nest and scout for food, typically the corpses of heat-stricken animals. Even the silver ant, however, must be careful: at such times they can become victims of the heat themselves.

Which one of the following, if true, LEAST helps to explain the silver ant's choice of scavenging times?

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The chief predators of the silver ant must take cover from the sun during midday.
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The cues that silver ants use to navigate become less reliable as the afternoon progresses.
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Other scavengers remove any remaining corpses as soon as the temperature begins to drop in the afternoon.
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The temperature inside the silver ants' nests often exceeds the surface temperature during the hottest times of the day.
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Silver ants cool themselves by climbing onto small pieces of dried vegetation to take advantage of random light breezes.

Reference / correct answer:

Silver ants cool themselves by climbing onto small pieces of dried vegetation to take advantage of random light breezes.

Four of the five choices explain why the silver ant scouts for food in the blazing midday heat of the Sahara Desert, notwithstanding the little critters’ vulnerability to heat. The absence of predators [The chief predators of the silver…] would certainly explain why that time of day would seem fortuitous. So would the greater ease of picking up navigational cues, [The cues that silver ants use to…]; better get the scouting done now rather than later. That better-now-than-later idea is picked up by option [Other scavengers remove any…] as well: The later the ant waits, [Other scavengers remove any…] suggests, the less food there is to forage. And [The temperature inside…] suggests that it’s all just a matter of relativity. If it’s hotter inside their nests than outside of them, who can blame the ants for getting out?

In contrast to those four eminently reasonable explanations, correct choice [Silver ants cool themselves by] sidesteps the whole issue. “Random light breezes” could come along at any time of day, and so the insects’ own particular form of air conditioning is of no help in explaining why the ants choose to forage during the blazing midday.

Question 347

The same task triggers different levels of awareness of one's surroundings, called environmental awareness, in different individuals. Mathematical puzzles, for example, cause most people to increase such an awareness. Some people – those who formulate the answer visually, imagining the numbers in their mind's eye – will, in an attempt to freeze the picture, experience a decrease in environmental awareness while solving the puzzle. Other people's environmental awareness may rise during the exercise, because their brains are signaling a rest at the end of every stage of problem solving.

Which one of the following is most strongly supported by the information above?

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There are some people for whom mathematical puzzles do not cause an increase in their level of environmental awareness.
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People who visually formulate answers differ from other problem solvers in that the former are aware of their surroundings.
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People tend to be more aware of their surroundings when solving mathematical problems than when solving nonmathematical problems.
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Mathematical problem solvers who rely on visual techniques become aware of their surroundings only during periods of rest.
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Mathematical problem solving requires frequent periods of rest in the form of increased awareness of the problem solver's surroundings.

Question 348

Art historian: Great works of art have often elicited outrage when first presented; in Europe, Stravinsky's Rite of Spring prompted a riot, and Manet's Dejeuner sur Vherbe elicited outrage and derision. So, since it is clear that art is often shocking, we should not hesitate to use public funds to support works of art that many people find shocking.

Which one of the following is an assumption that the art historian's argument requires in order for its conclusion to be properly drawn?

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Most art is shocking.
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Stravinsky and Manet received public funding for their art.
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Art used to be more shocking than it currently vs.
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Public funds should support art.
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Anything that shocks is art.

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