LSAT Practice Test 87 – Logical Reasoning 1 – Questions + Answers + Explanations Bundle – TRAINING

Report a question

You cannot submit an empty report. Please add some details.

1 / 25

1. In situations where it is difficult to make informed decisions about products, consumers should be provided with the relevant information. The difficulty of determining whether a food product contained nutritious ingredients was resolved by requiring food manufacturers to print nutritional information on their products’ packaging.


Similarly, many consumers are interested in conserving energy, and since there is no easy way for consumers to determine how much energy was required to manufacture a product, Which one of the following most logically completes the argument?

Think about how playing dead can save the animal from being eaten. Small or Large – makes no difference. A prey is a prey.

2 / 25

2. Biologist: Some small animals will instinctively go limp, “playing dead” when caught by a predator. But it is hard to see how playing dead can have survival value in this situation. The predator means to eat the animal just the same, whether or not it plays dead.


Which one of the following, if true, would most help to resolve the apparent paradox described by the biologist?

3 / 25

3. Food columnist: Only 2 percent of imported seafood is subjected to health safety inspections. So if you want to increase the likelihood that the seafood you buy will be safe to eat, you should buy only domestic seafood.


The answer to which one of the following questions would most help in evaluating the food columnist’s argument?

4 / 25

4. Dog owner: In general, large dogs need less intensive exercise than smaller dogs to stay fit. A dog that is not exercised at the level of intensity it needs is more apt to be troublesome than one that is. So for any apartment dweller who has limited time to give a dog exercise but who wants to have a dog, a large dog is less likely to be troublesome than a small one.


Which one of the following is an assumption the dog owner’s argument requires?

5 / 25

5. One theory concerning the importance of vitamin C in the human diet holds that vitamin C plays a crucial role in the production and maintenance of the body’s supply of collagen, an important protein occurring almost exclusively in connective tissue and bones. For this reason, some doctors believe that vitamin C can be useful in treating the symptoms of some common illnesses.


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

6 / 25

6. Principle: If someone makes an error, it is unethical for a coworker to use that error to his or her own advantage. Application: Because Mark used his coworker Rashmi’s clients’ e-mail addresses to advance his own career, his action was unethical.


Which one of the following, if true, most helps to justify the above application of the principle?

7 / 25

7. Kevin: My barber shop sells an herbal supplement that, according to my barber, helps prevent baldness because it contains an enzyme that blocks the formation of a chemical compound that causes people to lose hair. Sabine: That’s simply not true. The fact is, your barber makes money by convincing people to buy that product.


Sabine’s argument is most vulnerable to criticism on the grounds that it

8 / 25

8. Analyst: When Johnson attacked his opponent by quoting her out of context, his campaign defended this attack by claiming that the quote was even more politically damaging to her in context. But those who run his campaign clearly do not believe this.


They have since had plenty of chances to refer to the quote in its proper context but continue to quote it out of context Which one of the following principles, if valid, most strongly supports the analyst’s reasoning above?

9 / 25

9. Ellen: A group of economists and ecologists recently estimated the economic value of Earth’s biosphere’s “essential services,” such as climate regulation, food, and water supplies, at $33 trillion annually. We should therefore make protection of the biosphere a high priority. Santiago: I’m uncomfortable with the idea of calculating the biosphere’s dollar value in order to justify protecting it. Such an approach implies that the biosphere’s most important value lies in the “services” it provides us.


On the basis of their dialogue, it can most reasonably be concluded that Ellen and Santiago disagree over the truth of which one of the following statements?

10 / 25

10. Researchers have found that most people’s bodies make an enzyme, CYP2A6, that plays a crucial role in eliminating nicotine, the addictive drug in cigarettes, from the body. Smokers whose bodies make the most common form of this enzyme tend to smoke more than those whose bodies make some other form of it. Why? Well, the faster nicotine is eliminated from one’s body, the sooner one will crave another cigarette, and .


Which one of the following, if true, most effectively completes the explanation above?

11 / 25

11. Unlike other mechanical devices, the clock did not evolve from the simple to the complex. The earliest clocks were also the most complicated. This is because early clocks were used primarily to predict astronomical phenomena, though the mechanisms they used for this purpose incidentally enabled one to keep track of time. Gradually the timekeeping functions became more important and the astronomical ones diminished.


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

12 / 25

12. Regina: The additional revenue obtained from leasing government-owned toll bridges to private investors will be allocated to the transportation budget, so the leases will not be used to reduce shortfalls in other budget areas. Amal: But allocating new revenue to transportation will free up existing transportation funds for use in other areas. Thus, the new revenue will nonetheless help reduce budget shortfalls in other areas.


Regina and Amal disagree over whether

13 / 25

13. The use of ordinary dictionaries in interpreting the law is justified in the same way that chemists use the periodic table. The periodic table is a convenient source of agreed-upon background information that can be usefully applied to the problem on which a chemist is working. In the same way, ordinary dictionaries can be useful to a legal interpreter in resolving terminological issues.


Which one of the following, if true, most seriously weakens the argument?

14 / 25

14. Biologists are mistaken in thinking that the fossil record provides direct evidence of the course of human evolution. Fossils cannot be interpreted objectively: the physical characteristics by which they are classified invariably reflect the models the paleontologists wish to test. For example, classifying a pelvis as human because it supported an upright posture requires taking for granted that bipedalism distinguished early hominids from apes.


Which one of the following most accurately expresses the overall conclusion of the argument?

15 / 25

15. The better we understand the behavior and ecological niche of an endangered species, the better chance we have of saving it. And the more individuals of a species we study, the better we understand it. Therefore, .


Which one of the following most reasonably completes the argument?

16 / 25

16. Art may make the world more beautiful, but one should choose a career in some profession other than art. Whether and how much artists get paid is determined by subjective evaluations by viewers or audiences of then- work. It is unacceptable for one’s pay to be determined by subjective evaluations of one’s work.


The reasoning in the argument is most vulnerable to criticism on the grounds that the argument

17 / 25

17. Critic: Vampires have traditionally been symbols of pure evil. Recently there has been a trend in entertainment of humanizing vampires. This is unfortunate. The overall trend in entertainment toward moral complexity is a good thing. But evil exists in the world, and the vampire myth is one of the most powerful representations of that.


The claim that the overall trend in entertainment toward moral complexity is a good thing plays which one of the following roles in the critic’s argument?

18 / 25

18. Some killer whales eat fish exclusively, but others also eat seals. Different groups of killer whales “chatter” in distinct dialects, and the dialects of seal-eating killer whales are recognizably different from those of killer whales that do not eat seals. Harbor seals use their ability to distinguish between different killer-whale dialects to avoid seal-eating killer whales. Marine biologists hypothesize that young harbor seals start with an aversion to all killer whales but then learn to ignore those that do not eat seals.


Which one of the following, if true, provides the strongest support for the biologists’ hypothesis?

19 / 25

19. Trainer: An athlete developed lower back pain after a strenuous athletic competition. For several days, she tried to overcome the pain by daily stretching, but the pain continued. Then, on the advice of a friend, she used a heating pad. Within a few days the pain was gone. This shows that the use of heating pads is generally more effective at relieving lower back pain than stretching is.


The trainer’s argument is vulnerable to criticism on each of the following grounds EXCEPT:

20 / 25

20. City official: Landowners must clear the snow from the sidewalks along the edge of their property by 24 hours after the end of a snowstorm. The city has the right to clear any sidewalk that is still covered more than 24 hours after a snowstorm’s end, and whenever it does so, it will bill the landowner for the service. All landowners whose sidewalks have not been cleared within 48 hours of the end of a snowstorm will receive citations, which always result in fines unless the landowners can demonstrate extenuating circumstances.


If all of the official’s statements are true, which one of the following must be true?

21 / 25

21. Critic: Almost all of the paintings from our city’s art movement share two characteristics: bold brushwork and a sharp contrast of light and shadow. The only ones that do not share these characteristics are abstract paintings, which— because they are not nonrepresentational—do depict light or shadow. However, the most famous painting from our . city—Blue Irises— cannot be considered part of the city’s art movement. For while this painting displays bold brushwork, it does not exhibit a sharp contrast of light and shadow.


Which one of the following is an assumption required by the critic’s argument?

22 / 25

22. Critic: Journalists should have reasonable knowledge of statistics. If not, they can make errors that misinform the public. For example, based on a clearly flawed interpretation of polling data, one journalist erroneously reported that a certain candidate would win an election.


The pattern of reasoning in the critic’s argument is most similar to that in which one of the following arguments?

23 / 25

23. Editorialist: Landis, one of this city’s top elected officials, recently spent $10,000 to redecorate his office. Many people believe that if Landis used city funds, then he misused public money, thereby violating his official duties. But Landis is guilty of such violation regardless of the money’s source. Spending $10,000 so frivolously is clearly immoral when so many people in our city live in poverty.


The editorialist’s conclusion follows logically if which one of the following is assumed?

24 / 25

24. Katelin says that we will be hit by a major snowstorm tomorrow. So she probably believes that tomorrow’s antique car show will be canceled, for it will certainly not be held if we are hit by a major snowstorm.


The questionable pattern of reasoning in the argument above is most closely parallel to that in which one of the following?

25 / 25

25. People should patronize businesses that meet high ethical standards, and the news media should help them to patronize those businesses. Therefore, when a business performs a notably ethical action, the news media should publicize that fact, for hearing of a business’s ethical conduct is often enough to motivate people to patronize that business.


Which one of the following, if true, most seriously weakens the argument?

Your score is

The average score is 0%

0%

Want More LSAT Practice Tests?

Want more help? Contact us today for more information on LSAT preparation and tutoring services.

Powered by WordPress