LG Game 3 Question 19 Explanation, by LSATHacks
The only adults that can be alone in boat 1 are F and H. Why? Because if we put G as the only adult in boat 1 then F has to go in boat 2. That doesn’t work: if F is in boat 2 then G is in boat 2 also (second rule).
(no good. F2 ➞ G2)
So we know that the answer is B. G has to be assigned to boat 2, while F or H is alone in boat 1. B is CORRECT.
The scenario where F is in boat 2 proves all the other answer choices wrong.
There is only one adult assigned to boat 1 in that scenario, but F is assigned to boat 2. A is wrong.
C is wrong because H is assigned to boat 1 in that scenario.
D is wrong because V can be assigned to boat 1 or 2 in that scenario.
E is wrong because Z could be assigned to boat 1 or 2 in that scenario
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