Logical ReasoningDifficulty: Hard

PT149 S4 Q23 ExplanationNo nonfiction book published

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

TopicsParallel

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Stimulus

No nonfiction book published by Carriage Books has ever earned a profit. Since Carriage Books earned a profit on every book it published last year, it nonfiction book last year.

What this question is testing

Parallel

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
23.

The pattern of reasoning in the argument above is most similar to that in which one of

Answer choices, explained

  1. Movie vs. Major Movie14% picked this

    No actor represented by the talent agent Mira Roberts has ever won an important role in a major movie. Since every actor represented by

    Ouch, this is mean. I would keep this on a first pass. We get our broad conditional: For all time, Ms. R's actors never win important roles in major movies. We get our specific contrapositive fact: Last year, Ms. R's actors won some important roles. The correct conclusion would be: Last year, Ms. R's actors were not in major movies. But it's a flawed conclusion to say they weren't in any movies. They might have landed these important roles in small time, obscure movies.

  2. Weaker Logic Match Lacks Timeframe12% picked this

    No hotel owned by the Bidmore Group specializes in serving business travelers. Since the Cray Springs Hotel is owned by the Bidmore Group, it

    This is an airtight argument that involves applying a broad rule to a specific fact. But the relationship between the two premises is not as tight as it could be. ORIGINAL P1 - No nonfiction has ever been profitable P2 - Last year, X's were profitable THIS ANSWER P1 - No hotels by BG ever serve biz travel P2 - X is a hotel by BG In the original, the second premise dealt with the end of the No statement. In this answer, the second premise deals with the beginning of the No statement. This is definitely worth keeping on a first pass, but ultimately this difference makes it an inferior answer. The other difference is that the second premise and the conclusion are not dealing with a specific period of time, the way the original and the correct answer do.

  3. Correct56% picked this

    Pranwich Corporation has never given a bonus to an employee in its marketing division. Since Pranwich gave bonuses to every one of its systems

    Why this is right

    ORIGINAL P1 - No nonfiction has ever been profitable P2 - Last year, X's were profitable Conc - X's were not nonfiction THIS ANSWER P1 - No marketing emp has ever been given bonus P2 - Last year, X's were given bonus Conc - X's were not marketing emp X's, of course, here would be the "systems analysts". If we were thinking back to our original recipe of, P1 A ? B P2 X is not B. C X is not A. That would match up here with P1 Marketing ? No Bonus P2 Sys Analysts were not (No Bonus). C Sys Analysts were not (Marketing). Clearly, the double negative is annoying, and the first premise was disguised by using "never" instead of "No" to create the same negative relationship.

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

  4. Weaker Logic Match No Timeframe12% picked this

    James Benson has never done business with the city of Waldville. Since Waldville only maintains business files on individuals that it does business with,

    This argument does involve applying a broad rule to a specific fact. But the relationship between the two premises is not as tight as it could be. ORIGINAL Premise 1 No nonfiction has ever been profitable Premise 2 Last year, X's were profitable THIS ANSWER Premise 1 No non-biz-affiliate is ever File Maintained Premise 2 X is a non-biz-affiliate. In the original, the second premise dealt with the end of the No statement. In this answer, the second premise deals with the beginning of the No statement. This is definitely worth keeping on a first pass, but ultimately this difference makes it an inferior answer. It's also maybe unclear whether "doesn't maintain a file" is actually equivalent to "doesn't have a file". The other difference is that the second premise and the conclusion are not dealing with a specific period of time, the way the original and the correct answer do.

  5. Invalid Logic No Timeframe6% picked this

    Conway Flooring has never installed hardwood flooring for any customer in Woodridge. Since Conway Flooring has had a lot of customers in Woodridge, the

    This is not airtight logic, so we don't need to scrutinize its structure. Just because Conway Flooring has never installed hardwood in Woodridge (despite having had lots of customers in Woodridge), that doesn't prove the company doesn't offer that kind of flooring. Maybe the customers in Woodridge are too low-budget (or too ritzy) to request hardwood flooring, but Conway still provides hardwood flooring to other cities. This also lacks the timeframe dimension of the original.

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