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coinskus001
2 năm trước
Một xí nghiệp dự định sản xuất 600 sản phẩm trong một thời gian nhất định. Do thi đua, xí nghiệp đã tăng năng suất thêm 5 sản phẩm mỗi ngày nên đã hoàn thành kế hoạch trước thời hạn 6 ngày. Tính năng suất dự kiến của xí nghiệp đó.
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