Logical ReasoningDifficulty: Medium

PT133 S2 Q22 Explanation

Food that is very high

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

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

Food that is very high in fat tends to be unhealthy. These brownies are fat-free, while those cookies contain a high percentage of fat. Therefore, than those cookies are.

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
22.

Which one of the following exhibits flawed reasoning most similar to the flawed reasoning exhibited by

Answer choices

  1. Not a Flaw / Bad Premise Match3% picked this

    Canned foods always contain more salt than frozen foods do. Therefore, these canned peas contain more salt than

    This seems like legit logic. It’s also missing a 2nd premise.

  2. Correct73% picked this

    Vegetables that are overcooked generally have few vitamins. Therefore, these carrots, which are overcooked, contain fewer vitamins than

    Why this is right

    Even if the peas seem more vitamin-packed because they aren’t overcooked, the overcooked carrots might still have more vitamins because maybe carrots start off with way more vitamins than peas do. Even though we’re overcooking the carrots, they might still win the vitamin comparison. Similarly, maybe brownies start off with may more unhealthy ingredients than cookies do, so even though we aren’t using sugar in the brownies, they still lose. This also contains the absolute vs. relative switch found in the original (it went from talking about whether something was unhealthy in the evidence to whether it is less healthy in the conclusion). Here we go from talking about few vitamins in the evidence to talking about having fewer vitamins in the conclusion.

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

  3. Bad Premise Match / Bad Conclusion Match4% picked this

    The human body needs certain amounts of many minerals to remain healthy. Therefore, this distilled water, which has

    The original is a comparison between two things. This argument is just about whether one thing is / isn’t healthy. This answer is re-using the idea of “healthy” from the original, which is often the sign of a trap answer. We want to re-use the logic of the original, but using the same topic or language is often how they craft trap answers.

  4. Bad Premise Match13% picked this

    Some types of nuts make Roy's throat itch. These cookies contain a greater percentage of nuts than that pie contains. Therefore, these cookies are

    This seems close, but it has a different flaw farther upstream than the original argument did. Some types of nuts affect Roy’s throat, but we don’t know if those types of nuts are being used in the cookie or the pie. Our objection to this could be, “Maybe neither of them use the nuts he’s allergic to. Maybe the pie has the bad nuts and the cookie has harmless nuts.” If the first sentence said “Nuts tend to make Roy’s throat itch” it would be a better match.

  5. Not a Flaw6% picked this

    Eating at a restaurant costs more than eating food prepared at home. Therefore, this home­ cooked meal is less expensive than a restaurant meal

    This seems like fairly legit logic, so it can’t mirror our flawed original.

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