Necessary AssumptionDiff: Medium
Logic Breakdown
Passage Summary: Since things like a famous name or high production costs can drive up a wine's price, you can't assume that just because a bottle is expensive, it's actually good.
Conclusion: A high price for a bottle of wine is not a reliable indicator of its quality.
Reasoning: The cost of wine is influenced by factors like the vineyard's reputation and labor costs, rather than just the quality of the wine itself.
Analysis: The argument identifies a 'gap' between the factors that determine price and the factors that determine quality. For the conclusion to be true, the argument must assume that a vineyard's reputation is not perfectly correlated with the quality of every bottle it produces. If a prestigious reputation always guaranteed high quality, then an expensive wine from a prestigious vineyard would always be good, which would destroy the author's conclusion. Look for an assumption that separates 'reputation' or 'cost' from 'intrinsic quality.'
Conclusion: A high price for a bottle of wine is not a reliable indicator of its quality.
Reasoning: The cost of wine is influenced by factors like the vineyard's reputation and labor costs, rather than just the quality of the wine itself.
Analysis: The argument identifies a 'gap' between the factors that determine price and the factors that determine quality. For the conclusion to be true, the argument must assume that a vineyard's reputation is not perfectly correlated with the quality of every bottle it produces. If a prestigious reputation always guaranteed high quality, then an expensive wine from a prestigious vineyard would always be good, which would destroy the author's conclusion. Look for an assumption that separates 'reputation' or 'cost' from 'intrinsic quality.'
Passage Stimulus
Passage Redacted
Unlock Full Passage9.Which one of the following is an assumption on which the argument depends?
Correct Answer
C
C is necessary. If vineyard reputation did always indicate quality, then a reputation-based price increase would still track quality, and the claim that expensive wine is not always good would collapse. Negation test confirms that negating C destroys the argument.
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