Five thousand of the 50,000 books

Answer choices

1. A

   Out of Scope: scriptwriters0% picked this

   None of the scripts used in films released in 1992 were written

   We don't care at all who wrote these scripts. We know that 25 of them were based on 1991 novels, and the only thing we need to know about the remaining 75 of them is whether any of them were based on non-novel books from 1991.

   0%
2. B

   Correct78% picked this

   None of the films released in country Z in 1992 were based on books

   Why this is right

   We know that 25 of the 100 films were based on 1991 novels, and the only thing we need to know about the remaining 75 of them is whether any of them were based on non-novel books from 1991. According to this answer, none of the 100 were based books other than novels, so there's no chance that any of the remaining 75 films were based on a non-novel book. Thus, this answer proves that the 25 films based on novels are the only 25 films based on any books from 1991. We could think of this answer as giving us a conditional that says if a 1992 film was ? then it was based based on a book on a novel By contrapositive, if not based on novel, not based on book We know that only 25 were based on novels. The remaining 75 were not based on novels. So according to this rule the remaining 75 were not based on books. Thus, we are able to derive that no more than 1/4 (no more than 25 of the 100 films) were based on books.

   Skill tested: Sufficient Assumption · how this choice captures the argument's function is the move to repeat next time.

   78%
3. C

   Out of Scope4% picked this

   None of the books that were published in country Z in 1992 were based on plots of

   Out of Scope: based on film plots We don't care at all whether some books were based on films. We know that 25 of the 100 films in 1992 were based on 1991 novels, and the only other thing we need to know about the remaining 75 films is whether any of those films were based on non-novel books from 1991.

   4%
4. D

   Out of Scope7% picked this

   Some of the films released in country Z in 1992 were based on older films that had been released for the

   Out of Scope: based on older films We don't care at all whether some films were based on older films from prior to 1991. We know that 25 of the 100 films in 1992 were based on 1991 novels, and the only other thing we need to know about the remaining 75 films is whether any of those films were based on non-novel books from 1991.

   7%
5. E

   Out of Scope: 1991 films10% picked this

   Some of the films released in 1991 in country Z were based on novels that

   We don't care at all what 1991 films were based on. We know that 25 of the 100 films in 1992 were based on 1991 novels, and the only other thing we need to know about the remaining 75 films is whether any of those films were based on non-novel books from 1991.

   10%