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Exam LSAT Section 1 Logical Reasoning All Questions

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Exam LSAT Section 1 Logical Reasoning topic 1 question 106 discussion

Actual exam question from Test Prep's LSAT Section 1 Logical Reasoning
Question #: 106
Topic #: 1
[All LSAT Section 1 Logical Reasoning Questions]

Plant manager: We could greatly reduce the amount of sulfur dioxide our copper-smelting plant releases into the atmosphere by using a new process. The new process requires replacing our open furnaces with closed ones and moving the copper from one furnace to the next in solid, not molten, form. However, not only is the new equipment expensive to buy and install, but the new process also costs more to run than the current process, because the copper must be reheated after it has cooled. So overall, adopting the new process will cost much but bring the company no profit.
Supervisor: I agree with your overall conclusion, but disagree about one point you make, since the latest closed furnaces are extremely fuel-efficient.
The plant manager's argument is most vulnerable to criticism on which one of the following grounds?

  • A. The overall conclusion is about a net effect but is based solely on evidence about only some of the factors that contribute to the effect.
  • B. The support for the overall conclusion is the authority of the plant manager rather than any independently verifiable evidence.
  • C. The overall conclusion reached merely repeats the evidence offered.
  • D. Evidence that is taken to be only probably true is used as the basis for a claim that something is definitely true.
  • E. Facts that are not directly relevant to the argument are treated as if they supported the overall conclusion
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Suggested Answer: A 🗳️
Now we need to identify the flaw in the plant managers reasoning. The plant manager concludes that the new process is more expensive, but hes only taken two factors into consideration. Other factors, such as fuel efficiency, might be important as well, but the plant manager ignores them. A. expresses this problem using different words.

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