Celebrate Earth Day With This Organic LSAT Logic Game
 by
 Apr 24, 2015
 LSAT, Sample Logic Games
Happy belated Earth Day! The Earth might be doomed, but you can still save your LSAT score.
We may be a day late and a dollar short, but in honor of the Earth Day yesterday, MSS is happy to bring you an organic, locally sourced, and reusable LSAT Logic Game! Give it a try, and think of it as penance for your high carbon lifestyle.
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Three recycling centers, A, B, and C, will each recycle at least one type of material: P, Q, R, and S. The assignment of materials to centers will adhere to the following rules:
Each material will be recycled by at least one recycling center.
B recycles any material recycled by A.
Material Q is recycled by at most one recycling center.
P is recycled at a center if but only if R is recycled at the same center.
B and C cannot recycle the same materials.
C recycles S.
1. How many of the materials must be recycled at exactly one center?
(A) 0
(B) 1
(C) 2
(D) 3
(E) 4
2. Which one of the following is a complete and accurate list of the materials that can be recycled at all three centers?
(A) None
(B) P, R
(C) P, S
(D) P, R, S
(E) P, R, Q
3. Which one of the following could be true?
(A) P is recycled at center C, and R is recycled at center B.
(B) C is the only center that recycles P.
(C) B is the only center that recycles Q.
(D) S and R are recycled at the same center.
(E) C recycles all four materials.
4. If A recycles R, and S is not recycled at the same center as P, then which one of the following must be true?
(A) C recycles exactly one type of material.
(B) S is recycled at more centers than Q.
(C) Q and S are recycled at the same center.
(D) B recycles more materials than A.
(E) A recycles exactly two types of materials.
5. Which one of the following must be false?
(A) A recycles exactly two types of materials.
(B) B recycles Q.
(C) C recycles R.
(D) C recycles Q.
(E) P is recycled at two recycling centers.
6. Which one of the following could be a complete and accurate assignment of materials to centers?
(A) A: P; B: P, R; C: Q, S
(B) A: S; B: P, R; C: Q, S
(C) A: P, R; B: P, R; C: S
(D) A: P, R, Q; B: P, R; C: S
(E) A: P, R; B: P, R, Q; C: S
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Hints:
1. There’s a principle of distribution hidden in the intro.
2. Represent rule 2 correctly. “Any” is a sufficient condition indicator.
3. Combine rules 1 and 3. Then combine the result with rule 2.
4. Combine rules 5 and 6. Then combine the result with the contrapositive of rule 2.
5. Create scenarios based on rule 4.
(Answer Key: 1: C; 2: A; 3: C; 4: E; 5: C; 6: E)
A version of this post was originally published on 4/22/14.
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