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voducminh28072001
2 năm trước
một ô tô đi từ Vinh lúc 7h15p đến thanh hóa lúc 10h15p. Biết vận tốc của ô tô là 56km/h . Giữa đường ô tô nghỉ 15p tính quãng đường đi từ vinh đến thanh hóa
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