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tuananhvip15
2 năm trước
Bài 8. Bác Nam có một thửa đất, bác dự tính một nữa số đất bác làm ao cá, 1/2 diện tích còn lại bác trồng khoai, 3/4 số đất trồng cải thì diện tích còn lại là 200m vuông. Hỏi thửa đất của bác Nam có diện tích là bao nhiêu mét vuông ?
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