Skip to main content
Sign in Create a free account
Varsity Tutors
Sign in Sign up

Practice Test 8 - LSAT Logical Reasoning

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

  1. Based on the above, which of the following cannot be true?
  2. The speakers' statements provide the strongest support for their agreeing about which one of the following?
  3. The conclusion is properly drawn if which one of the following is assumed?
  4. A café owner observes that on days when the café plays upbeat music, customers stay longer and the café sells more pastries. The owner reasons that upbeat music puts customers in a better mood, leading them to linger and buy more. Because the café wants to increase revenue without raising prices, the owner concludes that playing upbeat music every day will reliably increase pastry sales. The owner adds that the café's menu and staff have not changed recently, so music must be the key factor. Which one of the following, if true, most seriously weakens the argument?
  5. Health Commissioner Duarte: We should add fluoride to the city's water. Communities that fluoridate have fewer cavities, and the cost per resident is tiny compared with dental treatment. Parent Advocate Nolan: Fluoride may reduce cavities, but mass medication removes individual consent, and some people are sensitive to it. If the city wants better dental health, it should fund school-based dental clinics and education. The city should not treat everyone's water as a delivery system for a chemical. Duarte and Nolan are committed to disagreeing about whether
  6. Despite the initial high cost, electric vehicles are more economical in the long run due to lower fuel and maintenance expenses. The statement that electric vehicles are more economical in the long run plays which one of the following roles in the argument?
  7. A financial advisor argues that investing in a certain index fund is low risk. Over the past ten years, that fund's value has fluctuated less than the value of most individual stocks. Investments that fluctuate less are less likely to produce large losses over short periods. So the fund is less likely than individual stocks to produce large short-term losses. Therefore, investing in that index fund is a low-risk investment. Which one of the following is an assumption on which the argument depends?
  8. A neighborhood association uses this principle for approving exterior home modifications: Approval should be granted only if the modification (1) complies with all applicable safety codes and (2) preserves the neighborhood's stated architectural guidelines. If a modification violates either safety codes or the architectural guidelines, it should be denied, even if the homeowner prefers it. Which one of the following judgments most closely conforms to the principle above?
  9. A professor argues that a student who missed the midterm will still pass the course. The professor notes that any student who completes all homework assignments earns at least 40 percent of the final grade. The professor also notes that the student has already completed all homework assignments and that anyone who earns at least 60 percent overall passes the course. Therefore, the student will pass the course. Which one of the following assumptions, if made, enables the conclusion to be properly drawn?
  10. Two editors discuss whether to publish an anonymous op-ed alleging misconduct by a public official. Mei argues they should publish it because the allegations are detailed and the public has a right to know, and she says anonymity is justified when whistleblowers fear retaliation. Julian argues they should not publish it because anonymity prevents readers from assessing credibility, and he claims the paper would be acting irresponsibly without on-the-record sources. Julian concedes retaliation can be real, but he says they should wait until they can corroborate the claims with named witnesses. Mei replies that corroboration can occur without naming the author. The speakers disagree about which one of the following?
  11. A transit authority uses this principle when deciding whether to offer a fare-free service day: A fare-free day should be offered only if (1) an independent analysis projects that the revenue loss can be fully offset by preidentified funds, and (2) the authority can maintain normal service frequency without canceling routes. If either condition is not met, a fare-free day should not be offered. Which one of the following judgments most closely conforms to the principle above?
  12. Based on the above, which of the following cannot be true?
  13. The role of the statement "But speed alone does not show accuracy" is to
  14. The argument proceeds by doing which of the following?
  15. A consumer-review site states this principle for removing a posted review: A review should be removed only when it contains demonstrably false factual claims about a product or includes personal identifying information about a private individual. Reviews that are merely harsh opinions, or that contain true but unflattering facts, should not be removed. The site applies this principle when users request takedowns of reviews. The principle above would most strongly support which one of the following?
  16. The pattern of reasoning in the argument is most accurately described as:
  17. At a mid-sized company, the HR director notes that after the company began offering free on-site yoga classes, the number of sick days taken per employee fell from 6 per year to 4 per year. Over the same period, employee satisfaction survey scores also rose. Since yoga reduces stress, the director concludes that the yoga program caused the reduction in sick days. The director adds that because the program is inexpensive and popular, the company should keep it permanently as its main strategy for reducing absenteeism. Which one of the following, if true, most seriously weakens the argument?
  18. Which one of the following is a point on which the speakers agree?
  19. Which one of the following most closely parallels the reasoning in the argument above?
  20. At Northbridge Library, the board notes that every branch that installs self-checkout kiosks reduces average checkout-line waits by at least 30% within three months. The Elm Street branch installed kiosks three months ago, and its wait times are down 35%. When wait times drop that much, patrons check out more items per visit, and Elm Street's average items per visit has indeed risen. Therefore, Elm Street's recent increase in items per visit was caused by the installation of self-checkout kiosks. Which one of the following, if assumed, allows the conclusion to be properly drawn?

Practice tests