LSAT Question of the Day — September 5, 2026
One free LSAT-style logical reasoning question a day. No timer. Pick an answer to check yourself, then read the explanation.
Flaw question · #9 of 60
A famous actor says this brand of water filter removes more contaminants than any other. So it must be the best filter on the market.
The argument is flawed because it
Show explanation
Acting fame gives no expertise in water filtration. An endorsement is not evidence about the product’s quality.
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Last updated October 12, 2026