LSAT 157 | Section 3 | Logical Reasoning: Q7

LR Question 7 Explanation

QUESTION TEXT: News report: Some recently invented television screens…

QUESTION TYPE: Must be True

FACTS:

1. Some recently invented television screens are actually made of smaller screens (“tiles”) seamlessly joined together.
2. These television sets are only a few inches thick.
3. Normal screens of the same thickness tend to get more dim as they grow larger.
4. In a compound screen, however, each tile is small and able to remain bright.
5. An unlimited number of the tiles can be joined together, without reducing brightness or increasing thickness.

ANALYSIS: We’re learning about television screens. The normal screens, if only a few inches wide, get dimmer as they get larger. The compound screens are different. They can get infinitely large without sacrificing brightness.

Note that we don’t know anything about whether thicker screens are better or worse. We only know things about screens that are a few inches thick.

___________

1. We don’t know that this technology only works with large screens. It’s seamlessly joined together and infinitely scalable, but that doesn’t mean that it’s worse at a small size.
2. We can’t say this. Something was invented that would meet that hypothetical need, but people can invent things that aren’t immediately in demand.
3. We don’t know that thicker screens get brighter. We just know that non-compound screens that are only a few inches thick tend to get dimmer as they get larger.
4. CORRECT. We’ve learned that typical thin-screened televisions tend to dim as they get bigger. However, with the new technology, screens can get bigger without sacrificing brightness or increasing thickness.
5. Just because we haven’t heard about disadvantages doesn’t mean they don’t exist. We just know that these screens can be bright, thin and big. Maybe picture quality or framerate suffers.

Recap: The question begins with “News report: Some recently invented television screens”. It is a Must be True question. Learn how to master LSAT MBT questions on the LSAT Logical Reasoning question types page.