Jar Jar’s Ruination Rule
The problem
In Star Wars, Jar Jar Binks is a character. A wildly dramatic review droid uses made-up screen-time estimates for a four-movie marathon. Use only the numbers in the table; no Star Wars knowledge is needed.
The droid calls a movie “ruined” when Jar Jar’s screen time is more than one tenth of the movie’s runtime.
The droid’s made-up notes
| Movie | Runtime | Jar Jar time |
|---|---|---|
| The Phantom Menace | 120 min | 13 min |
| Attack of the Clones | 140 min | 14 min |
| Revenge of the Sith | 130 min | 8 min |
| A New Hope | 120 min | 0 min |
Questions
Use separate paper for your solution.
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Find one tenth of each movie’s runtime. List the four threshold times in table order.
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Under the droid’s “more than one tenth” rule, which movies are ruined? How many movies is that?
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Another droid changes the rule to “at least one tenth.” Which movie changes classification, and how many movies now count as ruined? Explain why.