Logical ReasoningDifficulty: Hard

PT147 S4 Q20 Explanation

Edgar: Some of the pumps

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

TopicsAgree/Disagree

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

Edgar: Some of the pumps supplying water to our region have been ordered shut down in order to protect a species of small fish. But it is absurd to the sake of something so inconsequential.

Rafaela: You're missing the point. The threat to that fish species is a sign of a very our water supply.

What this question is testing

Agree/Disagree

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
20.

The dialogue provides the most support for the claim that Edgar and Rafaela

Answer choices

  1. Unsupported Disagree Position3% picked this

    shutting down the pumps will actually inconvenience a large number

    Edgar would Agree with this, but we have no support for the Disagree position. From Rafaela's statements, we can't derive that she thinks, "Shutting down the pumps won't inconvenience lots of people".

  2. Correct71% picked this

    the survival of the fish species is the only reason for shutting

    Why this is right

    This is the only answer speaking to why we're shutting down the pumps, which was what our prediction was all about. It comes off sounding very extreme, but Edgar is definitely under the impression that the pumps are being shut down for the sake of this fish (and only for that). That's why he's so exasperated that we're going to such inconvenient lengths just for the sake of this one, small fish species. Meanwhile, Rafaela would support the Disagree position. She thinks that there's at least one reason (other than protecting the small fish) that they are shutting down the pumps: they're worried that whatever in the water is harming this fish could later harm us, by entering our water supply.

    Skill tested: Agree/Disagree · how this choice captures the argument's function is the move to repeat next time.

  3. Unsupported Disagree Position24% picked this

    species of small fish are

    Edgar would somewhat Agree with this, because he's assuming that this small fish species is inconsequential, but this answer sounds more like a universal, "ALL species of small fish are inconsequential". It's not clear that Edgar believes that. More importantly, though, we have no support for the Disagree position. From Rafaela's statements, we can't derive that she thinks, "species of small fish are consequential". She's never arguing that this small fish we're talking about is consequential. She's saying whatever it is that's harming this small fish could be consequential.

  4. Out of Scope: legal0% picked this

    the order to shut down the pumps

    Neither one of these people speak to the legality of the shut down, so we wouldn't be able to support the Agree or Disagree position.

  5. Too Strong: sufficient1% picked this

    shutting down the pumps will be sufficient to protect the

    Neither one of these people speak to the sufficiency of the shut down, so we wouldn't be able to support the Agree or Disagree position. This answer is saying that "if we shut down the pumps, it's 100% certain the fish species will be protected". We can't derive that from either set of statements.

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