Logical Reasoning

PT138 · S3 · Q4 Over the last few decades

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

  • 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

Over the last few decades, public outcries against pollution have brought about stricter regulations of emissions.

Given

Over the last few PO -causes↣ SR decades, public outcries against pollution have brought about stricter regulations of emissions.

The cities that had the most polluted air 30 years ago now have greatly improved air quality.

This [improved air SR -causes↣ IAQ quality] would not have happened without these stricter regulations.

4.

Which one of the following can be properly inferred from the statements above?

  1. In the city with the

    Unsupported Relationship

    This assumes that the city with the worst air pollution today was one of the most polluted 30 years ago.

    7% picked this

  2. No city has worse air

    Too Strong

    While the statements indicate that this is true of the most polluted cities 30 years ago, it is not necessarily true for all cities.

    1% picked this

  3. Most of the public outcries

    Supports the Inference

    This supports the inference from the causal chain, but is not necessarily follow from the statements.

    5% picked this

  4. The most polluted cities today

    Unsupported Relationship

    While it’s not that the most polluted cities improved their air quality, it could be true that all cities improved their air quality. It also could be the amount of improvement was the same everywhere. In which case the cities that were the most polluted 30 years ago would still be the most polluted today.

    3% picked this

  5. Correct

    Public criticism led to an

    Why this is right

    This connects the PO -causes↣ SR -causes↣ IAQ causal chain implied by the statements.

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

    84% picked this

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