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phuongdie0209
2 năm trước
Một thửa ruộng hình chữ Nhật có nửa chu vi = 175 m ,chiều rộng bằng =2 phần 3 chiều dài.Người ta trồng lúa trên thửa rộng đó, cứ 100m vuông thu hoạch được 50kg thóc .Hỏi thửa rộng đó thu hoạch được bao nhiêu kg thóc
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