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thanhtratran2003
2 năm trước
Một mảnh vườn có chu vi là 248m. Chiều dài gấp 3 lần chiều rộng. Người ta trồng rau trên đó, cứ 1m² thu được 3 kg. Hỏi trên cả mảnh vườn thu hoạch được bao nhiêu kg rau?
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