Sufficient AssumptionDiff: Easy
Logic Breakdown
Passage Summary: This stamp is probably worth a lot because it's old, in great shape, and has a mistake on it. Since age and rarity are what make stamps valuable, this one is a winner.
Conclusion: The stamp in question is likely to be of high financial value.
Reasoning: The stamp is old and in excellent condition; it also contains a printing error. Rarity and age are cited as the primary determinants of a stamp's value.
Analysis: The argument provides two of the three necessary components for value: age and condition. However, it only implies the third component—rarity—by mentioning a 'printing error.' To make the conclusion follow logically, we must bridge the gap between a printing error and rarity. The argument assumes that having a printing error is sufficient to make a stamp rare. Look for an answer that explicitly states that stamps with printing errors are rare, as this would complete the set of requirements for the stamp to be considered valuable.
Conclusion: The stamp in question is likely to be of high financial value.
Reasoning: The stamp is old and in excellent condition; it also contains a printing error. Rarity and age are cited as the primary determinants of a stamp's value.
Analysis: The argument provides two of the three necessary components for value: age and condition. However, it only implies the third component—rarity—by mentioning a 'printing error.' To make the conclusion follow logically, we must bridge the gap between a printing error and rarity. The argument assumes that having a printing error is sufficient to make a stamp rare. Look for an answer that explicitly states that stamps with printing errors are rare, as this would complete the set of requirements for the stamp to be considered valuable.
Passage Stimulus
Passage Redacted
Unlock Full Passage8.The conclusion is properly inferred if which one of the following is assumed?
Correct Answer
B
If printing errors are confined to only a few individual stamps, then this error-bearing stamp is rare; combined with its age and good condition, that suffices to infer it’s highly valuable given rarity and age are the most important factors.
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