PUMaC 2007 · 几何（B 组） · 第 1 题
PUMaC 2007 — Geometry (Division B) — Problem 1
题目详情
- A pirate ship spots, 10 nautical miles to the east, an oblivious caravel sailing 60 south of west at a steady 12 nm/hour. What is the minimum speed that the pirate ship must maintain at to be able to catch the caravel?
解析
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Original Explanation
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