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Course: LSAT (DEPRECATED) > Unit 1

Lesson 5: Analytical Reasoning – Worked examples

Mixed setup | Given info–cannot be true | Worked example

Watch a demonstration of one way to approach a "Given info: CANNOT be true" question on a mixed setup from the Analytical Reasoning section of the LSAT.

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Video transcript

- [Instructor] If you haven't already done the overview video for the setup, make sure to stop watching this one and go back and do the overview video because that's where we created our diagram and went through the rules and deductions. This question asks us which one of the following politicians cannot be interviewed in the second segment? The answer will be a politician who can never be interviewed in the second segment and then the wrong choices will be politicians who could acceptably be interviewed in the second segment even if it's in only one scenario. Our scenarios don't explicitly indicate any politicians who can't be in the second segment but we can remember that we built the scenarios around where the Munson-Kim pair go and we determined that the pair either goes into segment three or four. That means that neither Munson nor Kim can ever be in the second segment. If we look for either Munson or Kim to be in the choices, we can see that choice A as our answer. Munson can never be interviewed in the second segment. Let's quickly look at why the wrong choices are wrong. B, Lewis can be in the second segment and scenario too. It could be Greer and Hernandez in one, Lewis in two, Fallon in three, Munson and Kim in four. C, Hernandez could be in the second segment in scenario two. It could be Greer and Lewis in one, Hernandez in two, Fallon in three, Munson and Kim in four. D, Greer could be in the second segment in scenario two. It could be Hernandez and Lewis in one, Greer in two, Fallon in three, Munson and Kim in four. And finally, E is Fallon. And Fallon could be in the second segment in scenario one as long as Hernandez is in segment one so we know that this is possible. The answer once again is A.