IL-GILLIS 1998 Problem 4
A man has a seven-candle chandellier. The first evening he lighted one candle for one hour, the second evening he lighted two candles, also for one hour, and so on. After one hour the seventh evening, all seven candles simultaneously finished. How did the man choose the candles to light every evening?
Dataset text AI-MO AoPS. Quoted with source.
Solutions
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