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doanthaomy
2 năm trước
Trên quãng đường AB dài 200km có 2 ô tô đi ngược chiều. Xe 1 khởi hành từ A đến B, xe 2 khởi hành từ B đến A. Hai xe khởi hành cùng lúc và sau hai giờ thì gặp nhau. Tính vận tốc mỗi xe nếu vận tốc xe 2 lớn hơn vận tốc xe 1 là 10km/h.
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