Logical ReasoningDifficulty: Easy

PT109 S4 Q6 Explanation

A worker for a power company trims

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

TopicsParallel Flaw

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

Start practicing free

Free to start

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

A worker for a power company trims the branches of trees that overhang power lines as a prevention against damage to the lines anticipated because of the impending stormy season. The worker reasons that there will be no need for her to trim the overhanging branches of tree have indicated that they might cut it down anyway.

What this question is testing

Parallel Flaw

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
6.

Which one of the following decisions is based on flawed reasoning that is most similar to the

Answer choices

  1. Trap1% picked this

    A well inspector has a limited amount of time to inspect the wells of a town. The inspector reasons that the wells should be

  2. Trap2% picked this

    All sewage and incoming water pipes in a house must be replaced. The plumber reasons that the cheaper polyvinyl chloride pipes should be used

  3. Correct92% picked this

    A mechanic must replace the worn brakes on a company’s vans that are used each weekday. The mechanic reasons that since one of the

    Why this is right

    Answer C is correct.

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

  4. Trap5% picked this

    A candidate decides to campaign in the areas of the city where the most new votes are concentrated. The candidate reasons that campaigning in

  5. Trap0% picked this

    None of the children in a certain kindergarten class will take responsibility for the crayon drawing on the classroom wall. The teacher reasons that

Continue the review in LSAT Lab

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

Save and practice this skill
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