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December 2011 LSAT
Which one of the following could be the order of the presentations, from first to sixth?
on December 24, 2019
When I was setting up the game I wasn't able to make many deductions.
What deductions can you make?
on December 25, 2019
Let's review the setup for this game. The game requires us to determine the order of six presentations by three teachers - J K L. J presents on N & O. K presents on P S T . L presents on W.
J: N O
K: P S T
___ ___ ___ ___ ___ ___
1 2 3 4 5 6
The following rules apply:
(1) K cannot give two presentations in a row.
This is an important rule because we know that K must give 3 presentations total, which means that the only four possible scenarios for which presentations could K give:
1. K __ K __ K__
2. __ K __ K __ K
3. K__ __ K__K
We can conclude that either presentation #1 or #6 or both must be given by K.
__ __ __ __ __ __
(2) S must be given earlier than O.
S > O
This rule tells us that one of K's presentations (S) must come before one of J's presentation (O), so S cannot be presentation #6 and O cannot be presentation #1.
__ __ __ __ __ __
(3) T must be given earlier than W.
T > W
This rule tells us that T cannot be #6, and W cannot be #1.
___ __ __ __ __ __
Since neither T nor J can be #6, we can conclude that if one of K's presentations is #6, it must be P.
K(6) -> P
The question asks us which of the following could be the order of presentations.
(A) is incorrect because P&T cannot be consecutive
(B) is incorrect because T cannot be #6
(C) is correct and complies with all the rules.
(D) is incorrect because S > O
(E) is incorrect because S &T cannot be consecutive
Let me know if this makes sense and if you have any other questions.
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