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Mathematics, 31.07.2021 15:30 bubster5820

Anh Nam đi xe đạp từ A đến B với vận tốc là 12km/h .Đi được 6km thì xe đạp bị hư ,anh Nam đi bằng ô tô và đến B sớm hơn dự định 45 phút .Tính quãng đường AB ,biết vận tốc ô tô là 30km/h

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Anh Nam đi xe đạp từ A đến B với vận tốc là 12km/h .Đi được 6km thì xe đạp bị hư ,anh Nam đi bằng ô...
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