Logical ReasoningDifficulty: Medium

PT137 S3 Q18 Explanation

Activities that pose risks

A free, expert breakdown of this official LSAT Logical Reasoning question.

TopicsPrinciple-Conform

Keep going in LSAT Lab

  • Save & drill this skill build targeted practice sets from questions like this one

  • Video walkthroughs watch every question solved step by step

  • 81 official LSATs as questions, timed sections & full-length tests

Full official LSAT questions are available through LawHub. This page provides LSAT Lab's explanation, strategy, and review tools without republishing the full official question.

Stimulus

Activities that pose risks to life are acceptable if and only if each person who bears the risks either gains some net benefit that cannot be bears the risks voluntarily.

What this question is testing

Principle-Conform

Your task

Break the argument into its conclusion and evidence, then do exactly what the question stem asks with that structure.

Common trap

Answers that sound relevant to the topic but don't connect to the argument's actual reasoning.

Winning move

Predict what a right answer must do, then test each choice against the conclusion-evidence gap.

Reading along? Open the full official question in LawHub — we show a fragment here and keep the reasoning in our own words.

The question
18.

Which one of the following judgments most closely conforms to the

Answer choices

  1. Not Life-Threatening10% picked this

    A door-to-door salesperson declines to replace his older car with a new model with more safety features; this is acceptable because the decision not

    Although this establishes that the risk is being taken voluntarily, it's not clear that keeping his older car is a "life-threatening activity", so the principle doesn't seem to apply.

  2. Doesn't Establish Either Criteria1% picked this

    A smoker subjects people to secondhand smoke at an outdoor public meeting; the resulting risks are acceptable because the danger from secondhand smoke is

    To say that the risks to the bystanders are acceptable, we need to know that they're getting a special benefit they can only get by inhaling secondhand smoke, or that they've freely chosen to breathe secondhand smoke. Neither of those is established. Not to mention, breathing secondhand smoke outside doesn't seem like it even qualifies as "life-threatening risk", so what are we doing here?

  3. Correct78% picked this

    A motorcyclist rides without a helmet; the risk of fatal injury to the motorcyclist thus incurred is acceptable because the

    Why this is right

    "The risk of fatal injury thus incurred" establishes that this is a life-threatening risk. And it is established that this risk is freely taken by the motorcyclist. Hence, we're allowed by this principle to call this risk acceptable.

    Skill tested: Principle-Conform · how this choice captures the argument's function is the move to repeat next time.

  4. Not Life-Threatening Doesn't Meet Either Criteria10% picked this

    Motor vehicles are allowed to emit certain low levels of pollution; the resulting health risks are acceptable because all users of motor vehicles share

    The resulting health risks of breathing in car pollution are not established as life-threatening risks. Also, we don't establish that these risks are taken in order to obtain a special benefit or that they're freely accepted. It just says the risk is acceptable because we all share the benefit.

  5. Trap0% picked this

    A nation requires all citizens to spend two years in national service; since such service involves no risk to

    This establishes that spending two years in national service is not a life-threatening risk, so it's immediately irrelevant to the principle we're being tested on. It also doesn't meet either of the criteria: done to obtain a special benefit or freely taken risk.

Continue the review in LSAT Lab

Save this question, watch the video walkthrough, and drill similar questions in your LSAT Lab account.

LSAT Lab

Turn this review into a targeted study plan.

Save this question, drill more like it, watch the video walkthrough, and track your progress in your LSAT Lab account.

Start practicing free