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saobangtoro
2 năm trước
Hai điểm A và B cách nhau 6,5 km cùng lúc 6 giờ 30 phút Nam từ A và Bình từ B đi cùng chiều về điểm C biết vận tốc của Nam là 6,4 km/ h vận tốc của bình là 3,8 km/h Hỏi Nam đuổi kịp Bình lúc mấy giờ? Giúp mình với nha mình đang cần gấp mình sẽ đánh giá cho các bạn hay nhất 😍😍😍😍
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