LSAT 29, Logic Game 3, Question 16, LSATHacks

LG Game 3 Question 16 Explanation, by LSATHacks

You should always draw local rule questions, and this is no exception.

If G is third, only FH can go 1st and 2nd. KL and J can’t go first, because they go after FH. 

And S can’t fill spots 1 and 2 on it’s own.

I’ve drawn KL – J, S above the diagram. I find this is a quick way to remind myself of which variables go after G. The comma indicates that there’s no rule. 

So if I had written “A, B, X” it would have meant that A, B and X come after G, in any order. 

If I write “A-B, X” it would mean that A comes before B, but X can go before, after or in the middle of them.

Try it yourself. It’s an easy way to remember the rules and to see which variables go where.

A is wrong because F has to go in 1 or 2.

B is wrong because KL go before J. J can be presented sixth, at the earliest.

C is CORRECT. J can go sixth or seventh.

D is wrong because F or H goes second.

E is tricker to eliminate. If you put S fifth, the only open spaces are 4, 6 and 7. You need two spaces to place KL, but they have to come before J. So putting them in 6 and 7 won’t work.