LSAT 23 | Section 3 | Logical Reasoning: Q9

LR Question 9 Explanation

QUESTION TEXT: If a person chooses to walk rather than drive, there…

QUESTION TYPE: Necessary Assumption

CONCLUSION: There will be a lot less pollution if people stop driving.

REASONING: There is less pollution if you walk rather than drive.

ANALYSIS: We need to know how much pollution is caused by driving. Maybe it isn’t very much compared to agriculture, manufacturing, housing, etc.

There’s another problem. We need to assume that people are currently driving when they could walk. Because sometimes people can’t walk. For example, if they live in the suburbs.

___________

1. This doesn’t affect whether walking reduces pollution.
2. Public transportation? The argument was about walking.
3. This doesn’t have to be true. Even if you could also bike, take a subway, etc. it’s still true that you’ll reduce pollution if you walk rather than drive.
4. This hurts the argument if true. The argument is stronger if there are many people who drive but who could walk.
5. CORRECT. If this isn’t true, then there is nobody who can switch from driving to walking.

Recap: The question begins with “If a person chooses to walk rather than drive, there”. It is a Necessary Assumption question. Learn how to master LSAT Necessary questions on the LSAT Logical Reasoning question types page.