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drbinhbl
1 năm trước
Một phân xưởng dự định may một lô hàng theo đó mỗi ngày phân xưởng phải làm xong 90 áo ,nhờ cải tiến kỹ nên khi thực hiện phân xưởng may được 120 áo mỗi ngày .Do đó phân xưởng không những hoàn thành dự định trước thời hạn 9 ngày, mà còn làm thêm được 60 áo .Hỏi theo kế hoạch phân xưởng phải may bao nhiêu áo?
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