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phongphuhn1984
2 năm trước
giúp em với 1.Một kho xuất 3 tấn gạo trong 3 ngày . ngày thứ nhất xuất 800kg gạo , ngày thứ hai bằng 1 phần 4 số gạo đầu . hỏi ngày thứ ba kho xuất bao nhiêu tấn gạo ? 2. có ba thửa ruộng , biết tổng sản lượng thóc thu đc trên thửa ruộng thứ nhất và thứ hai là 950kg , trên thửa ruộng thứ 3 và thứ nhất là 1100kg . hỏi sản lượng thóc thu đc trên mỗi thửa ruộng ?
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