LSAT 19, Logic Game 3, Question 17, LSATHacks

V and W can only be put together in boat 2. If they’re both in boat 1 then that’s a violation of the third rule.

We have to put F in boat 1. If F goes in boat 2 then G goes there too. Then there’s no room for V and W.

One of G and H (the adults) must go in boat 2. That fills up the boat with one adult, VW, and one of X and Z.

In boat 1, we have to put F, Y, one of G and H and then one of X and Z.

A doesn’t have to be true. H and G are interchangeable.

B is CORRECT. Both F and Y have to go in boat 1.

We can see quickly that C, D and E don’t have to be true because they include X and Z. Those two variables are always interchangeable and so they can’t be correct for a “must be true” question. X and Z can always switch boats.

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