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LSAT Explanations › Preptest 90 › LSAT Preptest 90 Logic Games Explanations › Question 4

LSAT 90, Logic Game 1, Question 4, LSATHacks

LSAT 90 Explanations

LG Game 1 Question 4 Explanation, by LSATHacks

This question tells us that Roth’s call was local, which automatically rules out it being third (due to Rule 4).

That means we are in scenario 2 or 3:

Scenario 2:

LSAT Preptest 90, Game 1, Question 4, Diagram 10

Scenario 3:

LSAT Preptest 90, Game 1, Question 4, Diagram 11

Since this is a must be false question, before making any further drawings you should simply check if one of the answers contradicts both scenarios. S, Q and V are likely candidates, as they have set positions in each diagram. You can eliminate answers if the answer is possible in either scenario.

Scenario 2 eliminates A: Q can be fourth

B and D are not good candidates, as both R and T are flexible: between the two scenarios they can each go anywhere except third.

C is CORRECT. S can’t be second in either diagram.

The second scenario eliminates E: V is fifth in that scenario.

Note that you also could have eliminated the answers using a prior question and using impossibility.

Question 2 eliminates B and D. The scenario there placed R second and T first.

It is impossible for A or E to be correct. This is because if Q is fourth (A) then V is fifth (E), and vice versa. The answers are either both true or both false, and we can’t have two correct answers, so you can eliminate both.

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