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Practice Test 11 - LSAT Logical Reasoning

20 questions. Answer them in any order, then submit to see your score and every explanation.

  1. The two speakers are committed to disagreeing about which of the following?
  2. Which one of the following, if true, casts the most doubt on the conclusion above?
  3. Which one of the following, if true, casts the most doubt on the conclusion above?
  4. Which of the following can be inferred from the information above?
  5. Passage: A town's water department began adding a new corrosion inhibitor to the water supply. Within three months, reports of rusty tap water decreased, and tests showed lower iron levels at several sampling sites. Since corrosion in old pipes releases iron into the water, the inhibitor likely reduced corrosion. Therefore, continuing to use the inhibitor will keep iron levels in the town's water low over the next year. Which one of the following assumptions is required by the argument?
  6. The role of the statement "Most customers shop during daylight hours" is to:
  7. A café offers exactly three soups: tomato, lentil, and miso. Each day it serves exactly two of them. If tomato is served, then miso is not served. If lentil is served, then tomato is served. Exactly one served soup is spicy. Miso is spicy if and only if lentil is not served. Tomato is never spicy. Lentil is spicy only if miso is served. If the statements above are true, which one of the following CANNOT be true?
  8. A school principal argues that banning smartphones during class improved student attention. She notes that in the month after the ban, teachers recorded fewer instances of students being off-task, and the average score on weekly quizzes rose modestly. She also points out that most students complied with the ban because phones were collected at the start of each period. The principal concludes that the smartphone ban caused the improvement in attention and learning, and she recommends extending the ban to lunch and after-school study halls to further boost academic performance. Which one of the following, if true, most strengthens the argument?
  9. In a neighborhood association newsletter, a resident wrote: Our park's trash bins overflow mainly on weekends. The city's sanitation office says the collection schedule is fixed, but it also says it can add bins without changing pickup times. Since adding capacity addresses overflow without requiring additional public services, we should install more trash bins in the park. That will solve the weekend overflow problem. The reasoning above most closely conforms to which one of the following principles?
  10. Museum Director Chen: We should loan our most famous painting to the international exhibition. The loan fee will fund conservation, and the exhibition will raise our museum's profile, attracting future visitors. The painting will travel in a climate-controlled crate with couriers, and the host venue meets the same security standards we use. Keeping it in storage during renovations would do nothing for the public. Conservator Diaz: Even with top protocols, transport adds risk that cannot be eliminated. One accident or handling error could cause irreversible damage, and the loan fee would not compensate for that loss. Public access matters, but we can display high-quality reproductions during renovations and keep the original safe. Chen and Diaz are committed to disagreeing about whether
  11. A health clinic reports that the average wait time for patients to see a doctor decreased this month compared with last month. However, patient surveys collected at the clinic indicate that more patients complained about "long waits" this month than last month. The clinic did not change its hours, and the number of patient visits was about the same in both months. Administrators say their timing system is reliable, while staff members say patients seemed noticeably more frustrated this month. Which one of the following, if true, most helps to resolve the apparent discrepancy described above?
  12. The argument depends on which one of the following assumptions?
  13. The argument above depends on which one of the following assumptions?
  14. Chef Alston: The school cafeteria should switch to plant-based lunches twice a week. It would lower costs because beans and grains are cheaper than meat, and it reduces the cafeteria's carbon footprint. Students will adapt once the recipes improve. Parent Davis: Lower cost is not guaranteed; waste will rise if students refuse the meals. Also, the cafeteria's footprint is tiny compared with transportation, so the environmental benefit is negligible. If nutrition is the goal, we should improve meal quality without restricting choices. The point at issue between the two speakers is whether…
  15. The argument above depends on which one of the following assumptions?
  16. Which one of the following, if true, most strengthens the argument?
  17. Which one of the following, if true, most strengthens the argument?
  18. A museum is considering whether to move a popular painting from a small gallery to a larger hall. In the small gallery, the painting is viewed by 200 visitors per day, and crowding often prevents some visitors from seeing it comfortably. In the larger hall, the museum can install the same lighting and security, and the painting would be accessible to 350 visitors per day with less crowding. Since the move would not reduce the quality of viewing conditions and would allow more visitors to see the painting, the museum should move it to the larger hall. The reasoning above conforms most closely to which one of the following principles?
  19. Councilmember Rivera: The city's new congestion fee will cut downtown traffic because drivers respond to price signals; when a similar fee started in Harbor City, car entries fell and bus speeds rose. The revenue is locked to transit upgrades, so commuters get better alternatives. Some stores worry about fewer customers, but most shoppers already arrive by foot or transit, and delivery trucks can schedule off-peak. Shop Owner Lin: Harbor City isn't comparable; our buses are already crowded, so pricing cars out just shifts people into a system that cannot absorb them. The fee also hits workers with late shifts, since trains run less often at night. If customers think downtown is expensive to reach, they will choose malls with free parking, and small shops will close. The point at issue between the two speakers is whether…
  20. The reasoning above is flawed for which of the following reasons?

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