Mathematics, 07.08.2021 16:20 donnafranks2003

Lúc 6 giờ sáng, một ô tô đi từ tỉnh A đến tỉnh B với vận tốc 60km/h. Xe dừng lại 2 tiếng ở B để lấy hàng, sau đó trở về A với vận tốc 50km/h. Biết ô tô về đến A lúc 16giờ. Hỏi hai tỉnh A và B cách nhau bao nhiêu km?

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Lúc 6 giờ sáng, một ô tô đi từ tỉnh A đến tỉnh B với vận tốc 60km/h. Xe dừng lại 2 tiếng ở B để lấy...