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10 Most Common LSAT Questions

If you study enough LSAT exams, something becomes obvious very quickly: the test makers don’t reinvent the wheel.

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While the wording changes, the same core questions appear repeatedly across Logical Reasoning, Reading Comprehension, and Logic Games.

This article breaks down the most common actual LSAT question patterns—the ones that show up again and again in slightly different disguises.

1. “Which of the following, if true, most strengthens the argument?”

This is arguably the single most common LSAT question.

What it really looks like:

You’re given a short argument, for example:

A city installs more bike lanes. A year later, traffic congestion decreases. Therefore, bike lanes reduce congestion.

Then the question:

Which of the following, if true, most strengthens the argument?

What keeps repeating:

  • The conclusion assumes causation from correlation
  • The correct answer often:
    • Rules out alternative causes
    • Shows a direct link between the two events
    • Adds supporting evidence

Why it’s so common:

Because it tests your ability to identify gaps in reasoning, which is central to the LSAT.

2. “Which of the following is an assumption required by the argument?”

Another extremely frequent question.

Typical structure:

A company claims its new policy improved employee productivity because output increased after implementation.

Question:

Which of the following is an assumption required by the argument?

What repeats:

  • The argument depends on something unstated
  • The correct answer is something that:
    • Must be true for the argument to work
    • When negated, destroys the argument

Common hidden assumptions:

  • No other factors caused the result
  • The data is reliable
  • Definitions are consistent

3. “Which of the following most weakens the argument?”

The flip side of strengthening questions.

Repeated pattern:

A study finds that people who drink green tea live longer. Therefore, green tea increases lifespan.

Question:

Which of the following, if true, most weakens the argument?

What correct answers usually do:

  • Introduce an alternative explanation
  • Show reverse causation
  • Point out flawed data or sampling

Common twist:

The wrong answers often:

  • Are irrelevant
  • Attack something not central to the conclusion

4. “The reasoning in the argument is flawed because…”

These are flaw-identification questions.

Classic recurring argument:

All successful entrepreneurs take risks. John takes risks. Therefore, John is a successful entrepreneur.

Question:

The reasoning in the argument is flawed because it…

Common flaws you’ll see repeatedly:

  • Confusing necessary vs. sufficient conditions
  • Assuming correlation = causation
  • Overgeneralizing from small samples
  • Circular reasoning

Why it’s predictable:

The LSAT cycles through a limited set of logical fallacies.

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5. “Which of the following most closely parallels the reasoning above?”

Parallel reasoning questions look intimidating—but they repeat patterns.

Typical argument:

If a law is unjust, it should be changed. This law is unjust. Therefore, it should be changed.

Question:

Which of the following most closely parallels the reasoning?

What repeats:

  • Same logical structure, different topic
  • Often conditional logic:
    • If A → B
    • A
    • Therefore B

Trick:

Wrong answers will:

  • Reverse the logic
  • Change the condition
  • Add or remove necessary elements

6. “Which of the following can be properly inferred?”

These appear in both Logical Reasoning and Reading Comprehension.

Example:

All mammals are warm-blooded. Whales are mammals.

Question:

Which of the following can be properly inferred?

What repeats:

  • You must choose something guaranteed to be true
  • Not “likely,” not “supported”—but certain

Common trap:

Answer choices that are:

  • Too strong
  • Slightly beyond what’s stated

7. “The main point of the passage is…”

A staple of Reading Comprehension.

Typical passage:

A dense discussion of science, law, or humanities.

Question:

Which of the following best expresses the main point?

What repeats:

  • The correct answer:
    • Is broad but precise
    • Reflects the author’s purpose
  • Wrong answers:
    • Focus on details
    • Miss the author’s stance
    • Are too extreme

8. “Which of the following is most similar to the role played by…?”

Role questions show up constantly.

Example:

The argument presents a claim, then gives an example.

Question:

The statement “X” plays which of the following roles?

What repeats:

  • You must identify:
    • Conclusion
    • Evidence
    • Counterargument
    • Example

Trick:

The LSAT often disguises:

  • Conclusions as background
  • Evidence as opinion

9. Logic Games: “Which of the following could be a complete and accurate list/order?”

In Analytical Reasoning, this is everywhere.

Example:

Six people sit in a row with certain restrictions.

Question:

Which of the following could be the correct order?

What repeats:

  • Only one answer obeys all rules
  • Others violate:
    • Position constraints
    • Sequencing rules
    • Grouping limitations

10. Logic Games: “If X is true, which of the following must be true?”

A conditional twist inside games.

Example:

If A is in position 1…

Question:

Which of the following must be true?

What repeats:

  • You apply an extra condition
  • Then re-evaluate all rules

Final Thoughts

The Law School Admission Test may feel unpredictable, but it’s actually highly repetitive beneath the surface. The same core prompts appear again and again:

  • Strengthen
  • Weaken
  • Assumption
  • Flaw
  • Parallel reasoning
  • Inference
  • Main point

What changes is the context, not the logic.

If you train yourself to recognize these recurring question forms—and more importantly, the reasoning patterns behind them—you’ll start seeing the test less as a puzzle and more as a system.

And once you see the system, your score starts to move.