Practice Test 10 - LSAT Logical Reasoning

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

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1. The two speakers are committed to disagreeing about which of the following?
2. The reasoning above is flawed for which of the following reasons?
3. Which one of the following conforms most closely to the principle stated above?
4. The recent decline in sales must be due to the new competitor in the market. The argument proceeds by...
5. A court enforces an unpaid promise because the buyer relied on it. Which principle best explains this?
6. Which one of the following assumptions permits the conclusion above to be properly drawn?
7. Which one of the following, if true, most seriously weakens the argument?
8. A teacher argues that students should be permitted to redo one failed quiz. The teacher notes that the class policy is to allow a redo when a student completes the corrections and attends a review session. The teacher also notes that Alex completed the corrections and attended the review session. Therefore, the teacher concludes that Alex should be permitted to redo the quiz. The reasoning assumes that when a policy specifies sufficient conditions for receiving a benefit, anyone who meets those conditions should receive that benefit. The reasoning above most closely conforms to which one of the following principles?
9. Community Organizer Davis: The city should convert an abandoned rail line into a bike-and-walk trail. Similar trails increased nearby property values and gave residents a safe route to schools and shops. Housing Advocate Nguyen: Higher property values sound good, but they often lead to rent increases that push out long-term residents. A trail can be useful, yet without strong anti-displacement protections it becomes an amenity for newcomers. If the city wants safe routes, it should build protected lanes on existing streets and invest in affordable housing first. Davis and Nguyen are committed to disagreeing about whether
10. A city's public library notes that after it extended weekend hours, the number of books checked out on Saturdays increased by 20 percent. The library director claims that the longer hours caused more people to borrow books, showing that access is the main barrier to library use. Since the library's mission is to promote reading, the director concludes that extending hours even further—opening earlier on weekdays—will substantially increase overall reading in the city. The director points out that more checkouts mean more reading. Which one of the following, if true, casts the most doubt on the conclusion above?
11. The role of the statement "Moreover, among students with prior stagnation, those in the program improved more than similar students who declined to join" is to:
12. A school principal argues that adopting a later start time will improve student attendance. She points out that many absences are recorded in first-period classes, and that teachers report students often arrive late because they miss early buses. She also notes that when the district delayed start times at two pilot schools, first-period tardiness fell sharply. Therefore, she concludes that if her school starts later, overall attendance will improve. The principal's reasoning assumes that reducing first-period tardiness will necessarily translate into better overall attendance. Which one of the following, if assumed, allows the conclusion of the principal's argument to be properly drawn?
13. A research lab's authorship guideline states: A person should be listed as a coauthor on a lab paper only if (1) that person made a substantial intellectual contribution to the study's design or analysis and (2) that person reviewed and approved the final manuscript before submission. If either condition is not satisfied, the person should be acknowledged but not listed as a coauthor, even if the person is the lab director. Which one of the following most closely conforms to the principle stated above?
14. In evaluating the fairness of any competition, it is essential that all participants have access to the same resources and opportunities, and that the rules are applied consistently to everyone involved. This principle ensures that outcomes are determined by skill and effort rather than by unequal advantages. Which one of the following situations most closely conforms to the principle above?
15. The conclusion follows logically if which one of the following is assumed?
16. The argument above depends on which one of the following assumptions?
17. A librarian argues that eliminating late fees will increase overall library use. Another city's library removed late fees and then saw a rise in the number of active cardholders. The librarian reasons that late fees discourage patrons who fear accumulating charges, so removing fees makes people more willing to borrow. Therefore, the librarian concludes that removing late fees here will substantially increase circulation. The argument's force depends mainly on whether patrons in this community are currently avoiding borrowing because of late-fee concerns rather than for unrelated reasons such as limited book selection. Which one of the following would be most useful to know in evaluating the librarian's argument?
18. The argument requires assuming which one of the following?
19. Which one of the following, if true, most strengthens the argument?
20. A bookstore owner argues that hosting weekly author talks will increase sales. On the three Saturdays when the store held author talks, sales were noticeably higher than on comparable Saturdays without events. Many attendees stayed afterward to browse, and browsing increases the likelihood of making an unplanned purchase. Therefore, the author talks caused the higher sales. So the store should host weekly author talks to increase its overall sales. Which one of the following is an assumption on which the argument depends?

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