LSAT 155 | Section 1 | Logical Reasoning: Q1

LR Question 1 Explanation

QUESTION TEXT: Advertisement: Omnicide kills more species of insects than…

QUESTION TYPE: Weaken

CONCLUSION: Omnicide is the best insecticide for home gardeners, especially those who cannot determine which insects are destroying their plants.

REASONING: Omnicide kills more insect species than any other insecticide.

ANALYSIS: This argument is based on the idea that home gardeners want an insecticide that kills as many insect species as possible. But that might not be the case. If there’s an answer that attacks that premise, then it would weaken the conclusion.

___________

1. It doesn’t matter if some competitors kill almost as many insect species. Omnicide still kills the most, and the argument is saying that that makes it best.
2. CORRECT. Maybe it’s a good thing that other insecticides don’t kill as many species as Omnicide. If Omnicide is killing beneficial species, it’s no longer the best choice.
3. The argument isn’t saying that Omnicide will make plants healthy, guaranteed. It’s saying that it’s the best choice.
4. The profits of the manufacturer don’t change the fact that Omnicide kills more insect species than other insecticides.
5. People probably aren’t buying an insecticide to kill weeds or mammalian pests, so this isn’t a strike against Omnicide.

Recap: The question begins with “Advertisement: Omnicide kills more species of insects than”. It is a Weaken question. Learn how to master LSAT Weaken questions on the LSAT Logical Reasoning question types page.