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OpenExam.LSAT REASONING · FOUNDATION PRACTICE

Mixed skills

Name: __________________________Date: __________________

10 original practice questions · Untimed · Follow each question’s response instructions

1. Original foundation reading selection (shorter than a full official passage): City seed banks are often praised as insurance against the disappearance of plant varieties. Storage, however, is only one part of preservation. Seeds from some species lose viability quickly, and even long-lived seeds must eventually be grown so that fresh seed can be collected. Growing plants in a single garden also exposes them to a limited range of conditions. A network of community gardens can therefore complement a central seed bank: gardens maintain living populations under varied conditions, while the bank provides a reserve when a garden fails. This arrangement requires careful records so that varieties are not confused. Neither storage nor cultivation alone removes every risk, but the two approaches protect against different failures. Which statement is most strongly supported by the selection?

A. The passage establishes the opposite of this claim: a city could benefit from maintaining both a seed bank and several gardens.B. A city could benefit from maintaining both a seed bank and several gardens.C. A seed bank guarantees that every stored variety will survive indefinitely.D. The passage argues that record keeping is more harmful than seed loss.E. Community gardens cannot contribute to preserving plant varieties.

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2. Students who choose an optional tutoring program improve more than students who do not choose it. Participants also tend to complete more homework before joining. An advocate concludes: The tutoring program itself explains the entire difference in improvement. Which description most accurately identifies the reasoning error?

A. It infers that the program should be mandatory simply because it observes an improvement among voluntary participants.B. It concludes that every student improves by exactly the same amount without reporting individual results.C. It fails to separate the program's effect from preexisting differences between volunteers and nonparticipants.D. It assumes that participants complete less homework than nonparticipants despite the stated preexisting difference in the opposite direction.E. It treats a difference in improvement as evidence that the two groups study different subjects despite giving no subject information.

lsat-059

3. Average annual pay at a shop rose after a highly paid manager joined. The shop kept the same number of hourly employees. An advocate concludes: The hourly employees must now earn more than before. Which description most accurately identifies the reasoning error?

A. It takes the unchanged number of hourly employees as proof that their individual workloads are all identical.B. It assumes that every employee works an equal number of paid hours.C. It infers that the overall average fell simply because the shop hired one additional manager.D. It ignores the difference between full-time and part-time work.E. It infers a change for a subgroup from a change in the overall average.

lsat-017

4. A restaurant sold many outdoor meals during an unusually dry summer. The owner plans the same number of outdoor meals for a rainy autumn. An advocate concludes: The autumn outdoor service will be as profitable as the summer service. Which additional finding, if true, most weakens the advocate's conclusion?

A. The summer menu was printed in blue.B. A successful summer service guarantees equal profit in all seasons.C. Most autumn days are too wet for the restaurant's uncovered tables to be used.D. A restaurant sold many outdoor meals during an unusually dry summer.E. A weatherproof canopy allows equal table use and comparable costs throughout autumn.

lsat-111

5. Original foundation reading selection (shorter than a full official passage): Passage A: Archivists should preserve original order because the arrangement of records can reveal how an institution worked. Passage B: Original order can be informative, but some collections arrive disorganized or reflect an arrangement imposed long after the records were created. Archivists should document the history of an arrangement before treating it as evidence of original institutional practice. What role does the statement 'Passage B notes that a later person may have imposed the arrangement.' play in the selection?

A. It offers an alternative origin that affects how the same evidence should be interpreted.B. It proves that no further qualification of the central claim could ever be necessary.C. It presents a view that the author dismisses as impossible in every case.D. It replaces the passage's central distinction with an unrestricted rule applying to every possible case.E. It offers an objection that the passage ultimately rejects rather than incorporates into its central position.

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6. Hospital admissions for heat illness fell after shaded shelters were installed. At the same time, the city changed admission rules so mild cases were treated without admission. An advocate concludes: The shelters account for the entire fall in hospital admissions. Which additional finding, if true, most weakens the advocate's conclusion?

A. Hospital admissions for heat illness fell after shaded shelters were installed.B. The admission-rule change explains nearly all of the decline even in areas without shelters.C. A decline in admissions always proves that fewer people became ill.D. Emergency-call data unaffected by admission rules show an additional decline specifically near shelters.E. The shelters contain benches.

lsat-075

7. Original foundation reading selection (shorter than a full official passage): Passage A: A building's energy performance should be compared using energy use per square meter, so buildings of different sizes can be assessed fairly. Passage B: Intensity measures enable a useful comparison, but a very large efficient building can still use more total energy than a small less-efficient one. Policy must distinguish efficiency from total demand. Which statement is most strongly supported by the selection?

A. Passage B says energy per square meter has no comparative value.B. The passage establishes the opposite of this claim: both authors could use energy intensity while acknowledging that it does not give total demand.C. Passage A says all buildings have the same floor area.D. Both passages say lower intensity always guarantees lower total energy use.E. Both authors could use energy intensity while acknowledging that it does not give total demand.

lsat-199

8. School A has a higher percentage of scholarship students than School B. School B has ten times as many students as School A. An advocate concludes: School A has more scholarship students than School B. Which statement is the advocate's main conclusion?

A. School A has a higher percentage of scholarship students than School B.B. School A has more scholarship students than School B.C. A higher percentage always implies a higher count.D. A has 30 scholarship students out of 100, while B has 100 out of 1,000.E. School B has ten times as many students as School A.

lsat-052

9. An active alarm is required for the laboratory to satisfy its security policy. The laboratory activated its alarm yesterday. An advocate concludes: The laboratory now satisfies every part of the security policy. Which statement is the advocate's main conclusion?

A. The laboratory now satisfies every part of the security policy.B. An active alarm is required for the laboratory to satisfy its security policy.C. The laboratory activated its alarm yesterday.D. The policy also requires a locked chemical store, and that store is unlocked.E. An active alarm guarantees compliance with every laboratory rule.

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10. Extending opening hours would allow a gallery to admit more visitors. The extension would also increase staff costs. An advocate concludes: The gallery should extend opening hours regardless of any additional staff cost. Which statement is the advocate's main conclusion?

A. Extending opening hours would allow a gallery to admit more visitors.B. The extension would also increase staff costs.C. The gallery should extend opening hours regardless of any additional staff cost.D. Increasing attendance is always more important than every other gallery objective.E. The extra staff cost would consume funds needed to protect the gallery's collection.

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OpenExam.ANSWER KEY · KEEP SEPARATE

Answers & reasoning

1. A city could benefit from maintaining both a seed bank and several gardens. · Choice B

The relevant detail is: Some stored seeds lose viability quickly. A city could benefit from maintaining both a seed bank and several gardens. This inference preserves the author's qualifications without importing a universal or opposite claim.

lsat-133

2. It fails to separate the program's effect from preexisting differences between volunteers and nonparticipants. · Choice C

The argument moves from students who choose an optional tutoring program improve more than students who do not choose it. It fails to separate the program's effect from preexisting differences between volunteers and nonparticipants. The other descriptions attribute procedures or inferences that the advocate never uses.

lsat-059

3. It infers a change for a subgroup from a change in the overall average. · Choice E

The argument moves from average annual pay at a shop rose after a highly paid manager joined. It infers a change for a subgroup from a change in the overall average. The other descriptions attribute procedures or inferences that the advocate never uses.

lsat-017

4. Most autumn days are too wet for the restaurant's uncovered tables to be used. · Choice C

The claimed conclusion is: The autumn outdoor service will be as profitable as the summer service. The finding supplies a relevant challenge: Most autumn days are too wet for the restaurant's uncovered tables to be used. It addresses the gap identified by this diagnosis: It projects past results while overlooking a condition relevant to whether the results will continue.

lsat-111

5. It offers an alternative origin that affects how the same evidence should be interpreted. · Choice A

The referenced statement says: Passage B notes that a later person may have imposed the arrangement. It offers an alternative origin that affects how the same evidence should be interpreted. It contributes to the central point that passage B qualifies the evidential value of the arrangement emphasized by A.

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6. The admission-rule change explains nearly all of the decline even in areas without shelters. · Choice B

The claimed conclusion is: The shelters account for the entire fall in hospital admissions. The finding supplies a relevant challenge: The admission-rule change explains nearly all of the decline even in areas without shelters. It addresses the gap identified by this diagnosis: It overlooks a concurrent change that can affect the measured outcome.

lsat-075

7. Both authors could use energy intensity while acknowledging that it does not give total demand. · Choice E

The relevant detail is: Passage B says a large efficient building may use more total energy. Both authors could use energy intensity while acknowledging that it does not give total demand. This inference preserves the author's qualifications without importing a universal or opposite claim.

lsat-199

8. School A has more scholarship students than School B. · Choice B

The advocate offers these observations: School A has a higher percentage of scholarship students than School B. School B has ten times as many students as School A. The target claim is introduced as what the advocate concludes: School A has more scholarship students than School B. Identifying a conclusion does not require accepting it; the task concerns its argumentative role.

lsat-052

9. The laboratory now satisfies every part of the security policy. · Choice A

The advocate offers these observations: An active alarm is required for the laboratory to satisfy its security policy. The laboratory activated its alarm yesterday. The target claim is introduced as what the advocate concludes: The laboratory now satisfies every part of the security policy. Identifying a conclusion does not require accepting it; the task concerns its argumentative role.

lsat-043

10. The gallery should extend opening hours regardless of any additional staff cost. · Choice C

The advocate offers these observations: Extending opening hours would allow a gallery to admit more visitors. The extension would also increase staff costs. The target claim is introduced as what the advocate concludes: The gallery should extend opening hours regardless of any additional staff cost. Identifying a conclusion does not require accepting it; the task concerns its argumentative role.

lsat-127

Original source-grounded practice. Content and reasoning checks are separate from professional educator review, which remains pending. Not an official exam paper.