June 2007, Logical Reasoning 1, Question 13
Summary
The content delves into the strategy for tackling sufficient assumption questions on the GRE, using a specific question about the recycling of aluminum cans to illustrate the process of identifying the conclusion, analyzing the evidence, and selecting the answer that closes any possible loopholes.
- Sufficient assumption questions require an additional piece of evidence that, when combined with the given statements, conclusively proves the argument.
- The conclusion in the example provided is that group M contains twice as many cans as group L, based on the recycling of aluminum.
- Key evidence includes the uniformity of aluminum content in cans, the complete recycling of L's cans into M, and the negligible presence of materials other than aluminum in the cans.
- The primary loophole concerns the efficiency of the recycling process and whether it affects the volume of aluminum recovered.
- The correct answer choice (C) asserts that all aluminum is recovered in the recycling process, effectively proving the conclusion by eliminating the identified loophole.
Chapters
00:02
Understanding Sufficient Assumption Questions
00:46
Identifying the Conclusion and Evidence
01:17
Analyzing the Evidence and Closing Loopholes
03:29
Selecting the Correct Answer
