LSAT 109 | Section 3 | Logical Reasoning: Q8

LR Question 8 Explanation

QUESTION TEXT: Most people invest in the stock market without doing…

QUESTION TYPE: Must be True

FACTS:

1. Most people buy stocks without doing any research.
2. Some people rely only on their broker.
3. Some people just make hunches.
4. Some people sometimes do research but just as often rely on brokers or hunches.
5. Just a few people always do research before investing. 
6. Most investors make a profit.

ANALYSIS: Two most statements within the same group always overlap. So if most people who invest wear hats and most people who invest make money then I can say that at least some people who wear hats make money.

That’s actually the only way to combine statements that aren’t sufficient-necessary statements. If you’re given a long list of statements like the one above, look for two “most” statements.

___________

1. CORRECT. If most people don’t do research and most make a profit then there has to be some overlap between those two groups.
   Note that the group of “some” people who make a profit without research could be a very small group.
2. We only know that some people do this.
3. We don’t know. Maybe they’re all losers with awful hunches and terrible brokers. 
4. We only know that some of them will profit. Most might lose.
5. We don’t even know if some of those people make a profit.