StrengthenDiff: Medium
Logic Breakdown
Passage Summary: A contest is supposed to be fair, but almost all the winners were people who signed up right at the start. Because of this lopsided result, the whole thing must have been rigged.
Conclusion: The promotional lottery was unfair because it did not give all participants an equal chance of winning.
Reasoning: In a 30-day registration period, 90 percent of the winners were people who submitted their entries within the first 2 days.
Analysis: The argument assumes that the lopsided results (90% of winners from the first 2 days) must be due to a flaw in the lottery itself. However, what if 90% of the *total entries* were submitted in those first two days? If everyone signed up early, then it would be perfectly fair for the winners to be early birds too. To strengthen the argument, we need an answer that suggests the entries were actually spread out over the 30 days, making the winner distribution look much more suspicious.
Conclusion: The promotional lottery was unfair because it did not give all participants an equal chance of winning.
Reasoning: In a 30-day registration period, 90 percent of the winners were people who submitted their entries within the first 2 days.
Analysis: The argument assumes that the lopsided results (90% of winners from the first 2 days) must be due to a flaw in the lottery itself. However, what if 90% of the *total entries* were submitted in those first two days? If everyone signed up early, then it would be perfectly fair for the winners to be early birds too. To strengthen the argument, we need an answer that suggests the entries were actually spread out over the 30 days, making the winner distribution look much more suspicious.
Passage Stimulus
Passage Redacted
Unlock Full Passage9.Which one of the following, if true, most strengthens the argument?
Correct Answer
C
If entry forms were submitted at a consistent rate throughout the 30 days, then roughly 2/30 (about 6–7%) of entries came in the first 2 days. Getting 90% of winners from that small subset is extremely disproportionate and strongly supports that entrants did not have equal chances—i.e., the lottery was not fair.
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