Logical ReasoningDifficulty: Medium

PT153 S3 Q24 ExplanationAll of the one-way streets

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

TopicsMust be True

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Stimulus

All of the one-way streets in the city have dedicated bike lanes. City buses do not travel on any street with a dedicated bike lane. Parking is allowed only on streets that do not have a nine travels the full length of Batchelder Avenue.

What this question is testing

Must be True

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
24.

If the statements above are true, which one of the following must

Answer choices, explained

  1. Contradicted2% picked this

    Batchelder Avenue is a one-way

    Since there's a city bus that travels on Batchelder, we know that it's not a one-way street. city bus no not a or → dedicated → one-way parking allowed bike lane street

  2. Correct77% picked this

    Batchelder Avenue is not a one-way

    Why this is right

    Since there's a city bus that travels on Batchelder, we know that it's not a one-way street. city bus no not a or → dedicated → one-way parking allowed bike lane street

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

  3. Unknown14% picked this

    Parking is allowed on Batchelder

    All we know about Batchelder is that a city bus travels its full length, which tells us that there's no dedicated bike land and that it's not a one-way street. But we have no idea whether or not parking is allowed. city bus no not a or → dedicated → one-way parking allowed bike lane street

  4. Unknown4% picked this

    Parking is not allowed on Batchelder

    All we know about Batchelder is that a city bus travels its full length, which tells us that there's no dedicated bike land and that it's not a one-way street. But we have no idea whether or not parking is allowed. city bus no not a or → dedicated → one-way parking allowed bike lane street

  5. Unknown Relationship4% picked this

    Parking is not allowed on any street on which buses do

    This answer is trying to posit a conditional relationship between "city bus" and "parking allowed" but there's no arrow connecting them at all. city bus no not a or → dedicated → one-way parking allowed bike lane street

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