Logical ReasoningDifficulty: Hard

PT159 S3 Q17 Explanation

Manufacturer: If our biggest competitor were to go out of business

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

TopicsSufficient Assumption

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Stimulus

Manufacturer: If our biggest competitor were to go out of business, some of the specialized suppliers that we both use would be bankrupted. So, in order for us to competitor must stay in business.

What this question is testing

Sufficient Assumption

Conclusion

The manufacturer says: for us to stay in business, our biggest competitor must stay in business too.

Evidence

The reason: if the competitor goes out, some of the specialized suppliers we both use would go bankrupt.

Evaluate

Watch the chain. The premise gets us from "competitor out" to "suppliers bankrupted." The conclusion is about the manufacturer's own survival. So we need a missing link: the manufacturer's survival actually depends on those suppliers staying afloat.

Without that link, even if the suppliers go down, maybe the manufacturer could find replacements and survive. The argument needs to rule that out.

Goal

Find the answer connecting the manufacturer's survival to its suppliers not being bankrupted.

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

The question
17.

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

Answer choices

  1. Too Strong3% picked this

    The manufacturer's specialized suppliers will not

    This asserts as a fact that the manufacturer's specialized suppliers will not be bankrupted. But the argument is conditional — it tells us what would happen if the competitor went out. We do not need a guarantee that suppliers will survive; we need a conditional link between the manufacturer's survival and the suppliers' status. This answer asserts a fact instead of supplying that link.

  2. Reversal / Negation12% picked this

    The manufacturer will stay in business if its biggest competitor stays

    This says: if the competitor stays in business, then the manufacturer will stay in business. That is the converse of what the conclusion needs. The conclusion says the manufacturer's survival requires the competitor's survival, not that the competitor's survival guarantees the manufacturer's. Even if this answer were true, we still wouldn't have established that the competitor's exit dooms the manufacturer.

  3. Reversal / Negation3% picked this

    If the manufacturer goes out of business, its biggest competitor will go

    This reverses the direction. It says if the manufacturer goes out, the competitor goes out. The conclusion says the opposite — the competitor going out hurts the manufacturer. Even if this answer were true, it would not tell us that the manufacturer's survival depends on the competitor's survival.

  4. Reversal / Negation29% picked this

    The manufacturer will stay in business if its specialized suppliers are

    This says: if suppliers are not bankrupted, the manufacturer will stay in business. That is the converse of what the argument needs. The argument needs the suppliers' health to be a requirement for the manufacturer's survival, not a guarantee. With this answer, suppliers being bankrupted would not prevent the manufacturer from staying in business — and so the chain to the conclusion does not close.

  5. Correct53% picked this

    The manufacturer will stay in business only if its specialized suppliers

    Why this is right

    This closes the chain. The premise tells us the competitor going out leads to bankrupted specialized suppliers. This answer adds: the manufacturer can stay in business only if its specialized suppliers are not bankrupted. Combine the two — competitor goes out, suppliers bankrupted, manufacturer cannot stay in business — and you get the conclusion: for the manufacturer to stay in business, the competitor must stay in business. Sufficient assumption complete.

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

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