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2 năm trước
Một thửa ruộng hình chưc nhật có nửa chu vi là 175m, chiều rộng bằng 3/4 chiều dài. a) Tính diện tích thửa ruộng đó. b) Người ta trồng lúa trên thửa ruộng đó, cứ 1m2 thu hoạch được 4/3 kg thóc. Hỏi thửa ruộng đó người ta thu hoạch được bao nhiêu tấn thóc. Giúp tui với tui đg cần gấp
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