HMMT 2008 U5
- Guts
- Answer
A Vandal and a Moderator are editing a Wikipedia article. The article originally is error-free. Each day, the Vandal introduces one new error into the Wikipedia article. At the end of the day, the moderator checks the article and has a chance of catching each individual error still in the article. After 3 days, what is the probability that the article is error-free?
Dataset text NuminaMath olympiads. Quoted with source.
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\frac{416}{729}
Solutions
No solution is on olymmath yet. Official and human solutions come first when they arrive. AI solutions come after them, with a label.