📐 数学难度 7 — 🔵 Intermediateupstream_downstream👁 13 浏览次数⏱ 1 min read
Solve A boat travels at 30 km/h in still water. Current speed is 6 km/h. How long t... — Step-by-Step Solution by AhaStep
📝 Problem
A boat travels at 30 km/h in still water. Current speed is 6 km/h. How long to travel 94 km downstream? Upstream?