Logical ReasoningDifficulty: Easy

PT107 S1 Q3 Explanation

There should be a greater use of

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

TopicsStrengthen

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

There should be a greater use of gasohol. Gasohol is a mixture of alcohol and gasoline, and has a higher octane rating and fewer carbon monoxide emissions than straight gasoline. Burning gasohol adds atmosphere than plants remove by photosynthesis.

What this question is testing

Strengthen

Your task

Find the choice that makes the argument's conclusion more likely to be true.

Common trap

Answers that are consistent with the argument but add no real support, or that strengthen a claim the argument doesn't make.

Winning move

Locate the gap between evidence and conclusion, then pick the choice that closes it.

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

The question
3.

Each of the following, if true, strengthens the argument

Answer choices

  1. Trap4% picked this

    Cars run less well on gasoline than they do

  2. Trap2% picked this

    Since less gasoline is needed with the use of gasohol, an energy shortage

  3. Correct84% picked this

    Cars burn on the average slightly more gasohol per kilometer than

    Why this is right

    Answer C is correct.

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

  4. Trap2% picked this

    Gasohol is cheaper to produce and hence costs less at the

  5. Trap8% picked this

    Burning gasoline adds more carbon dioxide to the atmosphere than plants

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