Physics
Physics, 04.10.2021 01:00, aliyahadekoya

Một ca nô đi xuôi dòng nước từ bến A tới bến B hết 4 giờ, còn nếu đi ngược dòng từ bến B về bến A hết 5 giờ. Biết vận tốc của dòng nước so với bờ sông là 4 km/h. Tính vận tốc của
ca nô so với dòng nước và quãng đường

answer
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Một ca nô đi xuôi dòng nước từ bến A tới bến B hết 4 giờ, còn nếu đi ngược dòng từ bến B về bến A...

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