Logical ReasoningDifficulty: Hard

PT154 S4 Q20 ExplanationCritic: The more a novel

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

TopicsSufficient Assumption

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Stimulus

Critic: The more a novel appeals to the general public, the more money its author will make from it. However, since any serious novelist cares about literary style, no by the desire to make money.

What this question is testing

Sufficient Assumption

Your task

Find the assumption that, if added, guarantees the conclusion follows.

Common trap

Answers that only partly bridge the gap, leaving the conclusion unproven.

Winning move

Identify the new term in the conclusion and pick the choice that links it to the evidence.

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

The question
20.

The conclusion of the critic’s argument follows logically if which one of the

Answer choices, explained

  1. Unrelated to Goal11% picked this

    No novel written by a serious novelist in fact appeals to

    Unrelated to Goal: doesn't have new term We're trying to prove that serious novelists "aren't motivated primarily by the desire to make money", but that idea never showed up in the evidence, so it must show up in the answer. If I'm trying to prove A = Z and the evidence gives me A = B and C = B, the correct answer has to provide a fact about Z. If I only have A = B, C = B, and some other fact that never mentions Z, then there's no way to combine those ingredients to derive A = Z.

  2. Correct70% picked this

    No novelist who cares about literary style is motivated primarily by the desire

    Why this is right

    This is what we predicted. The conclusion defines this logic path as our objective: Serious --------------------------> not primarily Novelist motiv by $ The premise gives us this part of the path: Serious -----> cares about Novelist literary style So the missing ingredient the answer needs to provide to complete our logic path: cares about ----> not primarily literary style motiv by $ That's precisely the conditional we get from this answer: "if you care about lit style, you're not motivated primarily by money".

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

  3. Bad Trigger Match7% picked this

    No novelist whose novels exhibit good literary style is motivated primarily by the desire

    This answer is worth considering because it is a rule that allows us to prove "not motivated primarily by money", which is our entire goal. Can we trigger it? Does it apply to serious novelists? Do serious novelists' novels "exhibit good literary style"? We don't know. We were only told they "care about literary style" not that they were good at it.

  4. Bad Trigger Match7% picked this

    Any novelist who is motivated primarily by the desire to make money writes novels that in fact appeal

    This answer is worth considering because it is a rule that allows us to prove "not motivated primarily by money", which is our entire goal. We have to write this in contrapositive form to use it for our conclusion: novels don't appeal ? not motivated prim to the general public by desire for $$ Can we trigger it? Does it apply to serious novelists? Do we know that serious novelists' novels "don't appeal to the general public"? Nope. We were never told any facts about their novels. Notice how our conversational take on the argument makes this answer more appealing. Sufficient Assumption is not the time or place for using our conversational brain. It's rigid and mathematical.

  5. Bad Conclusion Match5% picked this

    Any novel that in fact appeals to the general public was written by a novelist motivated primarily by

    We need a rule that allows us to prove "not motivated primarily by the desire to make money". This is a rule that can only prove "is motivated primarily by the desire to make money", so this answer is functionally useless to us.

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