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nguyentienanh123
2 năm trước
Một xe máy đi từ B đến C với vận tốc 45km/giờ. Cùng lúc đó một ô tô đi từ A đến C với vận tốc 50km/giờ. Hỏi: a.Sau bao lâu ô tô đuổi kịp xe máy, biết rằng A cách B là 11km b. Nơi ô tô đuổi kịp xe máy cách A bao nhiêu kilômét?
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