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Mathematics, 22.07.2021 17:30 BABA761
Hai ô tô cùng khởi hành một lúc từ 2 tỉnh A và B cách nhau 400 k m đi ngược chiều và gặp nhau sau 5 h . Nếu vận tốc của mỗi xe không thay đổi nhưng xe đi chậm xuất phát trước xe kia 40 phút thì 2 xe gặp nhau sau 5 h 22 phút kể từ lúc xe chậm khởi hành. Tính vận tốc mỗi
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Hai ô tô cùng khởi hành một lúc từ 2 tỉnh A và B cách nhau 400 k m đi ngược chiều và gặp nhau sau 5...
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