Logical ReasoningDifficulty: Easy

PT110 S2 Q2 Explanation

Having an efficient, attractive subway

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

TopicsSufficient Assumption

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Stimulus

Having an efficient, attractive subway system makes good economic sense. So, the city needs to purchase new subway cars, since the city makes good economic sense.

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
2.

The conclusion drawn above follows logically if which one of the following

Answer choices

  1. Trap6% picked this

    The city should invest in an efficient, attractive

  2. Trap4% picked this

    Cost-effective subway cars are an integral part of an efficient

  3. Trap5% picked this

    Investment in new subway cars makes better economic sense than many of the other investment options

  4. Trap2% picked this

    New subway cars are financially

  5. Correct84% picked this

    New subway cars are required in order for the city to have a subway system that

    Why this is right

    Answer E is correct.

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

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