Logical ReasoningDifficulty: Hard

PT136 S4 Q21 Explanation

If the city starts requiring

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

TopicsMust be True

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Stimulus

If the city starts requiring residents to sort the materials that they put out for recycling, then many residents will put more recyclables in with their regular garbage. This will result in more recyclables being buried in the city's landfill. However, because of the cost of having city workers do its budget unless the sorting requirement for residents is implemented.

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
21.

Which one of the following statements logically follows from the

Answer choices

  1. Reversal1% picked this

    Most of the city's residents will continue to recycle even if a sorting

    The first statement indicates that some residents would recycle less if they were required to sort the materials that they put out for recycling, but that does not mean that most residents would continue to recycle.

  2. Too Strong1% picked this

    If the city starts requiring residents to sort their recyclables, then all of the residents who continue to

    Whether the recyclables that end up in the regular garbage all come from residents who abandon recycling or whether many residents simply are less diligent with their recycling efforts is not indicated in the statements.

  3. Unsupported Comparison13% picked this

    Implementing the sorting requirement would not cause the city's annual cost of sending garbage to its landfill to exceed its current

    Implementing the sorting requirement would cause the sanitation department to not stay within its budget. But how the cost of disposing garbage compares with the cost of sorting recyclables is not indicated in the statements.

  4. Correct65% picked this

    The amount of recyclables going to the city's landfill will increase if the sanitation department

    Why this is right

    The statements together SWB ? ?RL imply this is true.

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

  5. Reversal19% picked this

    If the city implements the sorting requirement, the sanitation department will stay

    This reverses the RSM ? SWB third statement.

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