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phanlongnhat353
2 năm trước
Một tổ công nhân có 8 người, họ dự kiến hoàn thành công việc trong 6 ngày. Vì muốn hoàn thành công việc sớm hơn, người ta bổ sung thêm 4 công nhân nữa cùng làm. Hỏi họ sẽ hoàn thành công việc đó trong bao nhiêu ngày ? ( Mức làm của mỗi người như nhau) ( Không yêu cầu tóm tắt)
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