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June 2007, Game 4, Question 22


Carl Pyrdum
Lesson by Carl Pyrdum
Magoosh Expert

Summary
The analysis of a specific LSAT question demonstrates the logical approach to solving a 'must be true' problem, focusing on the distribution of materials across centers with unique constraints.
  • The question involves determining the material that must be processed by Center 2, given specific constraints on what each center can process.
  • Center 3 is assigned to process glass, which imposes restrictions on the materials that Centers 1 and 2 can handle, notably that Center 2 cannot process plastic.
  • Center 1 must process plastic in an extra space not available to Center 2, due to the rule that if Center 2 processes a material, Center 1 must also process it.
  • The solution requires deducing that newsprint (n) must be processed by Centers 1 and 2, as eliminating it would lead to an untenable situation with the remaining materials.
  • The correct answer is identified as newsprint for Center 2, with a logical explanation provided for why other materials (glass, plastic, tin, wood) cannot fulfill the 'must be true' condition.
Chapters
00:00
Understanding the Question
00:58
Deducing the Solution
01:35
Identifying the Correct Answer