Logical ReasoningDifficulty: Easy

PT128 S2 Q10 Explanation

Columnist: Raising the minimum wage

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

TopicsNecessary Assumption

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Stimulus

Columnist: Raising the minimum wage to the level recently proposed will actually hurt, rather than help, workers with low incomes. As the minimum wage increases, businesses must compensate for higher wage costs by increasing prices for workers must buy but can already barely afford.

What this question is testing

Necessary Assumption

Your task

Find the assumption the argument requires in order for its conclusion to hold.

Common trap

Answers that would help the argument but aren't strictly required (sufficient, not necessary).

Winning move

Negate each choice — the right one breaks the argument when negated.

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

The question
10.

Which one of the following is an assumption on which the columnist's

Answer choices

  1. Irrelevant Relationship2% picked this

    Workers who earn more than the minimum wage would not also be hurt by increased prices

    We don't need anything to be true of workers who earn more than minium wage to reach our conclusion about minimum wage workers.

  2. Negation3% picked this

    Any increase to the minimum wage smaller than the one proposed would not substantially affect prices

    For one thing, we don't need anything to be true of smaller wage hikes than the one proposed. You could say that those hypothetical smaller hikes are out of scope. But digging deeper, this is actually a classic LSAT Negation trap. If the premise tells you X --> Y, you don't need to assume ~X --> ~Y.

  3. Correct91% picked this

    The proposed minimum-wage increase would not wholly compensate low-income workers for the resulting increase in prices

    Why this is right

    This matches our prediction. If we didn't predict this, we should still be drawn to the lovable language of ruling out: not wholly compensate. Not only is this common in Necessary Assumption correct answers, it's also very easy to subject to the Negation Test. What would happen to this argument if the wage increases did wholly compensate workers for the price hikes? That would destory the argument, preventing us from concluding that the wage increases would hurt rather than help. If the answer, negated, ruins the argument, it's correct.

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

  4. Irrelevant Relationship1% picked this

    If raising the minimum wage helped low-income workers, this would be a good reason

    We're not concerned with what does or doesn't justify a wage raise. We're concerned with analyzing the impact of a wage raise.

  5. Inference Bait3% picked this

    Changes in the minimum wage are generally not as beneficial to the economy as

    We might walk away from this argument thinking "well if that's true, I guess raising minimum wage isn't that great for the economy afterall." But something you might infer from the text is not the same as something the text assumes. We don't need this to be true in order for the argument to work. The introduction of the idea of "belief" is a big red flag. Answers about intent, knowledge or belief are almost never correct unless the stimulus itself explicilty deals with the concept, too.

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