Examkin

Question

Difficulty: HardNecessary vs. Sufficient Condition Flaws

Financial Analyst: A corporation can successfully weather a severe economic recession only if it maintains a substantial cash reserve prior to the downturn. Vancorp Industries has aggressively retained earnings over the past five years, resulting in a massive and unprecedented cash reserve. Therefore, we can be confident that Vancorp Industries will successfully weather the impending severe economic recession.

Which of the following best describes the logical flaw committed in the financial analyst's argument?

  1. It fails to recognize that fulfilling a precondition for a specific outcome is not, by itself, adequate to guarantee that the outcome will be realized.Answer
  2. B
    It infers that one financial phenomenon causes another merely because the two phenomena are frequently observed together.
  3. C
    It employs the term 'cash reserve' in two significantly different senses over the course of the argument.
  4. D
    It draws a sweeping conclusion about all corporations based on evidence derived from a single anomalous business.
  5. E
    It focuses on the absolute size of the cash reserve while completely ignoring what proportion of the company's operating costs it covers.

Answer

The correct answer is the option stating that the argument fails to recognize that fulfilling a precondition for a specific outcome is not, by itself, adequate to guarantee that the outcome will be realized.
The financial analyst's premise clearly establishes that a substantial cash reserve is a necessary condition ('only if') for weathering a recession. However, the conclusion mistakenly assumes that because Vancorp has met this necessary condition, its survival is guaranteed. This structurally treats a necessary requirement as if it were a sufficient guarantee, which is perfectly described by the correct option.

Step-by-Step Solution

1
Analyze the conditional statement in the premise.
The phrase 'only if' introduces a necessary condition. The premise translates to: If a corporation weathers a recession (Sufficient) -> It maintains a substantial cash reserve (Necessary).
Identifying the structural relationship between conditions is the foundational step for evaluating conditional logic arguments.
2
Analyze the application of the premise and the conclusion.
The argument states Vancorp has satisfied the necessary condition (has a massive cash reserve) and concludes that the sufficient condition will occur (will weather the recession).
This determines how the author attempts to use the established rules to prove their point.
3
Identify the logical mismatch between the premise and conclusion.
The author commits an Illegal Reversal. They confuse a necessary requirement (a precondition) with a sufficient guarantee.
Recognizing the gap between what is proven (Vancorp meets a requirement) and what is claimed (Vancorp is guaranteed to succeed) reveals the exact flaw.
4
Match the identified flaw with the abstract descriptions in the options.
The correct option abstractly describes treating a necessary condition ('precondition') as a sufficient condition ('adequate to guarantee').
LSAT flaw questions frequently use abstract logical terminology to describe structural errors.

Key Concept

Identifying Illegal Reversal (Confusing Necessary and Sufficient Conditions)
Rate this question

Topics

Necessary vs. Sufficient Condition Flaws

More questions from this topic