June 2010 LSAT Section 5 Question 18

Based on the passage, it can be concluded that the author and Broyles-González hold essentially the same attitude toward

Ben_Lorenc on August 30 at 04:58PM

Example 2: T-most-S

I have a question about hoe the example around the 40 minute mark was solved. Initially, the tutor tells us that "Most" statements are NOT reversible. I note that in the exmple was given prior as an exception to "Rule 1:" Must have an S&N statement, that two "most" statements with the Sufficient condition in common could be reversed to "some statements." However, I am confused as to how that applies to a "Most" statement and an S&N statement as seen in the question at hand: T-most-S T-->R How is the conclusion S-some-R?

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Emil-Kunkin on September 3 at 06:32PM

We can reverse a most statement into a some statement.

Let's think about this intuitively: if most dogs are small, we cannot say that the majority of small things are dogs. However we must know that there are at least a few small dogs so we know that some small things are dogs.

Looking at the example we see that most Ts are S- let's say that most trucks are Silver. We also know that all trucks are reliable. Since we know that there are at least a few silver trucks, and that all trucks are reliable, we know that there must be at least a few reliable silver things.