LSAT 138 | Section 2 | Logical Reasoning: Q1

LR Question 1 Explanation

QUESTION TEXT: Technician: Laboratory mice that are used for research…

QUESTION TYPE: Must Be True

FACTS: Mice are kept in small cages. That’s not healthy or normal. Mice aren’t as useful for research if we keep them in a non-normal environment.

ANALYSIS: You can connect the premises.

Small cages ➞ Normal ➞ Useful

Keeping mice in small cages makes them less useful for research.

Normally on a test I’d draw that with letters, not words, but the words make it clearer for a book.

___________

1. We’re not told whether there will be any changes.
2. We have no idea what’s appropriate. It might be appropriate to use mice even if they’re not kept in normal conditions. Or maybe it’s always wrong to experiment on mice.
3. CORRECT. You get this from combining the premises. The non-normal conditions in the cages make the mice less useful for research.
4. We’re not told anything about how scientists develop new techniques.
5. We aren’t told anything about other mice.