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lephuongttx
2 năm trước
có một thửa ruộng hình chữ nhật có chiều rộng là 60m và bằng 2 phần 3 chiều dài tính diện tích của thửa ruộng người ta thu hoạch được bao nhiêu tạ thóc trên thửa ruộng đó biết rằng cứ 100 mét vuông thì thu hoạch được 60kg thóc
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