Medium LSAT Sample Questions Practice Questions

Concept Explanation

Medium LSAT sample questions are practice problems that bridge the gap between basic logic and the high-complexity reasoning required for top-tier law school admissions. These questions simulate the actual difficulty level of the Law School Admission Test (LSAT), which is administered by the Law School Admission Council (LSAC). Unlike easy questions that rely on simple identification, medium-level questions require you to identify subtle flaws in arguments, map out conditional relationships with multiple variables, and distinguish between closely related answer choices. Success in this range involves mastering three core sections: Logical Reasoning, Reading Comprehension, and Logic Games (Analytical Reasoning). By engaging with a structured LSAT Prep routine, you can move past rote memorization and develop the critical thinking skills necessary for legal education.

Solved Examples

Reviewing these worked examples will help you understand the logical structures commonly found in medium-level questions.

1. Logical Reasoning (Flaw): An environmentalist argues that because a recent survey showed 70% of city residents support the new bike lane initiative, the initiative will definitely reduce traffic congestion.
   Step 1: Identify the conclusion: The bike lanes will reduce traffic congestion.
   Step 2: Identify the premise: 70% of residents support the initiative.
   Step 3: Find the gap: Popularity does not equal efficacy. The flaw is assuming that because people like a policy, the policy will achieve its physical objective.
2. Logic Games (Conditional Setup): If J is selected for the committee, then K must also be selected. If K is selected, then L cannot be selected.
   Step 1: Symbolize the rules: $J \ \rightarrow K$ and $K \ \rightarrow \ eg L$.
   Step 2: Create a chain: $J \ \rightarrow K \ \rightarrow \ eg L$.
   Step 3: Infer the contrapositive: If L is selected, then K is not selected, and therefore J is not selected ($L \ \rightarrow \ eg K \ \rightarrow \ eg J$).
3. Reading Comprehension (Main Idea): A passage discusses the historical shift in legal theory from Natural Law to Legal Positivism, highlighting how the latter emphasizes socially mandated rules over inherent morality.
   Step 1: Identify the scope: Legal theory evolution.
   Step 2: Identify the author's tone: Objective/Explanatory.
   Step 3: Formulate the main idea: The passage traces the transition from morality-based law to social-convention-based law.

Practice Questions

Test your skills with these Medium LSAT Sample Questions. These problems are designed to challenge your ability to synthesize information quickly.

1. Logical Reasoning: All successful trial lawyers are excellent orators. Some excellent orators are also published authors. Therefore, some successful trial lawyers must be published authors.
Which of the following describes the flaw in the reasoning above?

2. Logic Games: Six hikers—P, Q, R, S, T, and U—are walking in a single-file line. Q is immediately behind P. R is somewhere ahead of S. T is third in line. If U is last, which hiker must be fourth?

3. Logical Reasoning: A study found that children who play musical instruments perform better on math tests. The researchers concluded that learning music causes an increase in mathematical ability.
Which of the following, if true, most weakens the argument?

4. Logical Reasoning: Mayor: "Our city's crime rate dropped by 10% last year. This proves that my 'Safe Streets' initiative, launched 14 months ago, is a success."
Which of the following, if true, would most undermine the Mayor's claim?

5. Reading Comprehension: In a passage about bioluminescence, the author mentions that certain fungi glow to attract insects that disperse their spores. The author’s primary purpose in mentioning the fungi is to:

6. Logic Games: If X is in group 1, then Y is in group 2. If Z is not in group 2, then Y is in group 1. If X is in group 1, which of the following must be true about Z?

7. Logical Reasoning: No one who is afraid of heights should be a window washer. Some athletes are afraid of heights. Therefore, some athletes should not be window washers.
Is this argument valid or invalid?

8. Logical Reasoning: Recent data shows that 90% of people who own a luxury car also own a second home. Therefore, owning a luxury car is a major factor in the ability to afford a second home.
This argument is most vulnerable to criticism because it:

Answers & Explanations

1. Answer: It assumes that two groups (trial lawyers and published authors) that overlap with a third group (orators) must overlap with each other.
   Explanation: Just because Trial Lawyers are a subset of Orators, and some Orators are Authors, it doesn't mean the specific Orators who are Lawyers are the same ones who are Authors. This is a classic "some" vs. "all" error.
2. Answer: Q.
   Explanation: If U is 6th and T is 3rd, and Q must be immediately behind P, the only available block for P-Q is 1-2 or 4-5. However, R must be ahead of S. If P-Q are 4-5, R and S must be 1-2. If P-Q were 1-2, R and S would have to be 4-5. The question asks who could be 4th; in many variations, Q fits this constraint if P is 3rd (but T is 3rd), so P must be 4th and Q 5th, or vice versa. (Note: Logic game constraints usually require a full grid setup).
3. Answer: Children from wealthy families are more likely to both take music lessons and receive math tutoring.
   Explanation: This identifies a third variable (wealth) that explains the correlation, negating the direct causal link between music and math.
4. Answer: Neighboring cities that did not implement the initiative also saw a 10% or greater drop in crime.
   Explanation: This suggests the drop was due to a regional trend rather than the specific initiative, a common tactic in critical reasoning analysis.
5. Answer: Provide an example of a specific biological function served by bioluminescence.
   Explanation: The fungi serve as a supporting detail for the broader claim about the utility of light in nature.
6. Answer: Z must be in group 2.
   Explanation: If X is in 1, then Y is in 2. The second rule states: If Z is NOT in 2, then Y is in 1. The contrapositive of the second rule is: If Y is NOT in 1 (meaning Y is in 2), then Z MUST be in 2. Since X being in 1 forced Y into 2, Z must be in 2.
7. Answer: Valid.
   Explanation: This follows a categorical syllogism: All A (afraid of heights) are not W (window washers). Some B (athletes) are A. Therefore, some B are not W.
8. Answer: Confuses correlation with causation.
   Explanation: It is more likely that a third factor (high income) causes both luxury car ownership and second home ownership. You can practice more of these via an AI Exam Simulator.

Frequently Asked Questions

What makes an LSAT question "medium" difficulty?

Medium questions typically involve more than two variables or require you to identify a subtle logical gap that isn't immediately obvious. They often use distracting answer choices that look correct but fail on a technicality, such as "some" vs "most."

How much time should I spend on medium-level questions?

On average, you should aim to spend about 1 minute and 20 seconds to 1 minute and 30 seconds per question. This allows you to bank time for the harder questions at the end of the section while maintaining accuracy.

Can I use a calculator on the LSAT?

No, calculators are not permitted on the LSAT as the test does not require complex math. Any numerical reasoning required is purely logical, such as understanding percentages or basic arithmetic in Logic Games.

How often do Logic Games appear on the LSAT?

As of recent updates by the LSAC, the Analytical Reasoning (Logic Games) section is being phased out in favor of a second Logical Reasoning section. However, many standardized tests still use similar logical puzzles to test deductive reasoning.

What is the best way to improve on Logical Reasoning?

The most effective method is to practice "blind review," where you re-solve questions without looking at the answers to ensure you truly understand the logic. Using an AI Flashcard Generator can also help you memorize common logical fallacies and formal logic structures.