Difficult LSAT Logical Reasoning Questions

LSAT Blog Difficult Logical Reasoning QuestionsHere's a list of several Logical Reasoning questions in recent LSAT PrepTests that my students often ask me to explain.

The number of questions listed per PrepTest/section should not be taken as an indication of the PrepTest's/section's overall difficulty. The questions I've listed are simply those that jumped out at me when flipping through each of these exams.

Order the individual PrepTests now because they tend to run out in the weeks before test dates.


PrepTest 43 - June 2004 LSAT

S2, Q15 - government prevent cigarettes advertised, fatty foods
S2, Q16 - natural beauty, older local industries, regional economies
S2, Q18 - health education, propaganda
S3, Q9 - lecturers, effective teachers, eccentric, good communicators
S3, Q13 - sun dimmer, oceans frozen
S3, Q20 - computer microprocessor design flaws

PrepTest 44 - October 2004 LSAT

S2, Q11 - Euclidean geometry
S2, S13 - environmental problems, government mismanagement, consumer habits
S2, Q17 - hummingbird, goose, ostrich, eggs
S4, Q17 - ice ages, cosmic dust clouds, sun's orbit
S4, S18 - happiness, desires, compulsions, consequences

PrepTest 45 - December 2004 LSAT

S1, Q12 - dioxin, fish, reproductive abnormalities, river
S1, Q21 - geological record, meteor impacts, mass extinctions
S1, Q23 - morally right, best consequences
S1, Q24 - DNA samples and tests, exoneration
S4, Q18 - decentralization, large institutions function autonomously
S4, Q20 - 9-year-olds, major cigarette brand logos
S4, Q22 - jazz recordings, CDs, radio
S4, Q25 - vague staff review regulations

PrepTest 46 - June 2005 LSAT

S2, Q19 - babies, musical intervals
S2, Q20 - difficult exams and questions comparison, professors
S2, Q23 - kind, happy, love
S3, Q17 - computer professor evaluations
S3, Q22 - increase in # of old people, average age
S3, Q24 - money doesn't really exist

PrepTest 47 - October 2005 LSAT

S1, Q19 - live vs. inactivated polio vaccine
S1, Q22 - pesticides banned in U.S.
S1, Q26 - 1st-graders handwriting/composition skills
S3, Q21 - fitness consultant, cigarettes, clients
S3, Q23 - TV, paranormal, public's scientific understanding

PrepTest 48 - December 2005 LSAT

S1, Q19 - biology professors, bias, administrative positions
S1, Q24 - voters, join, donate, party viable?
S4, Q21 - community succeed, face unpleasant realities
S4, Q23 - managers, time management seminars/skills
S4, Q25 - psychological problems, behavioral therapy sessions

PrepTest 49 - June 2006 LSAT

S2, Q18 - nature, organic, holistic, nonlinear
S2, Q25 - public disclosure of investments
S4, Q16 - beauty, truth, most realistic art
S4, Q24 - Compujack computer programmer salaries

PrepTest 50 - September 2006 LSAT

S2, Q18 - toddlers, prefrontal cortex, rules
S2, Q21 - seafood, restaurant, illness, bacteria
S2, Q24 - acid rain, pollutants
S4, Q19 - smokers, heart disease, caffeinated beverages
S4, Q24 - asteroid, Yucatan peninsula, triceratops

PrepTest 51 - December 2006 LSAT

S1, Q20 - experienced salespeople, quota
S1, Q21 - sliding glass doors, summer vs. colder months
S3, Q12 - environmental articles, newspapers, orthodoxy
S3, Q18 - bacteria, flagellum, survival advantage

June 2007 LSAT (Unnumbered - Free PDF)

S2, Q17 - computer experts, significant threats
S2, Q19 - Land Party, rural, economic problems
S2, Q23 - morally right, wrong, well-being
S3, Q19 - candidates, governmental intrusion
S3, Q25 - human species, diverse array of environments

PrepTest 52 - September 2007 LSAT

S1, Q16 - extraterrestrials, UFOs
S1, Q21 - Iliad, Odyssey, Homer
S1, Q24 - intensive pasteurization of apple juice
S3, Q16 - hospitals, recovery rates, length of stay
S3, Q25 - studying distant past

PrepTest 53 - December 2007 LSAT

S1, Q8 - children, night lights, nearsightedness
S1, Q18 - salesperson, successful, client base
S1, Q21 - trees blossom, April/May rainfall
S3, Q18 - preserving nature, beauty, moral value
S3, Q25 - short meetings, relevant issues

PrepTest 54 - June 2008 LSAT

S2, Q23 - Southgate Mall, Mattress Madness
S2, Q26 - government, new severe weather sirens
S4, Q20 - TV Meteorologist, weather forecast, reliable
S4, Q21 - witnesses, inaccuracies, cross-examination

PrepTest 55 - October 2008 LSAT

S1, Q15 - Zack's Coffeehouse, free poetry readings
S1, Q21 - TV shows, funding, advertisers
S1, Q25 - 20th-century art, great art, influential, original
S3, Q18 - children's cognitive development
S3, Q19 - ideal bureaucracy, regulations
S3, Q25 - mathematics department, course

PrepTest 56 - December 2008 LSAT

S2, Q14 - overconfident entrepreneurs
S2, Q19 - literature, physics ,art, rhetoric
S2, Q24 - Byzantine Empire, lead seals
S3, Q16 - trust, happiness, meaningful emotional connection
S3, Q23 - summer day, temperature, humidity

PrepTest 57 - June 2009 LSAT

S2, Q12 - criminal organizations, generate profits

S2, Q24 - poem, contradictory ideas, author
S2, Q25 - mayoral campaign contributions, Weston
S3, Q14 - nonfat food labeling
S3, Q20 - moral action, securing mutual benefit
S3, Q23 - mitters, brushes, car washes

PrepTest 58 - September 2009 LSAT

S1, Q24 - bear population, preserve, valley
S1, Q25 - wig, handmade components, human hair
S4, Q23 - linear craters, volcanoes, meteorites
S4, Q24 - genuine creative genius, popular viewpoints

PrepTest 59 - December 2009 LSAT

S2, Q20 - quality control investigator, defective samples
S2, Q25 - luminous Sun, carbon dioxide, oceans
S3, Q19 - understanding word, knowing definition, babies
S3, Q20 - peppered moths avoiding predators
S3, Q21 - QWERTY keyboard, typewriters

PrepTest 60 - June 2010 LSAT

S1, Q13 - financial rewards, incentives in choosing jobs
S1, Q16 - buying old cars, reducing air pollution
S1, Q23 - laws against libel, public figures' reputations
S3, Q12 - labeling "miniature" fruit trees
S3, Q19 - sea butterflies, predation, compounds
S3, Q24 - sales of underground rock group's recordings

Photo by dalvenjah


  1. Hi steve,

    I am currently using your 5 month study schedule and noticed that many of the tough problems listed here are also in the schedule.

    Is this just a coincidence or do you put them in on purpose? Is practicing on harder questions a more effective approach?


  2. Hi Steve,

    the list you post is really helpful but is short. Could you extend to recent PTs?

    Best regards,