Five thousand of the 50,000 books published in country Z in 1991 were novels. βββββββ ββ ββ βββ βββββ ββββββββ ββ βββββββ β ββ ββββ ββββ βββββ ββ βββββ βββββββ βββββ βββ βββββ ββββ ββββββββ ββ βββββββ β ββ βββββ ββ ββββ ββββ βββββββββββ ββ ββββ ββββ βββββ ββ βββββ βββββββββ ββ βββββββ β ββ βββββ
The author concludes that at most 25% of the films released in 1992 were based on books published in 1991. His reasoning is that 25% of the films released in 1992 were based on novels published in 1991.
The authorβs conclusion is about books, but his premise is about novels. What if there were movies based on books (e.g. biographies) that arenβt novels? We need to close this gap in the argument. We could do so by adding the assumption that all movies released in 1992 that were based on 1991 books were based on novels.
Analysis by TheodoreMalter
Which one of the following, ββ ββββββββ ββββββ βββ ββββββββββ βββββ ββ ββ ββββββββ ββββββ
None of the βββββββ ββββ ββ βββββ ββββββββ ββ ββββ ββββ βββββββ ββ ββββββββββββ ββββββββββ
None of the βββββ ββββββββ ββ βββββββ β ββ ββββ ββββ βββββ ββ βββββ βββββ ββββ βββββββ
None of the βββββ ββββ ββββ βββββββββ ββ βββββββ β ββ ββββ ββββ βββββ ββ βββββ ββ βββββ ββββββββ ββ βββββ
Some of the βββββ ββββββββ ββ βββββββ β ββ ββββ ββββ βββββ ββ βββββ βββββ ββββ βββ ββββ ββββββββ βββ βββ βββββ ββββ ββββ βββββ ββββββββ
Some of the βββββ ββββββββ ββ ββββ ββ βββββββ β ββββ βββββ ββ ββββββ ββββ ββββ βββββββββ ββ βββββ