một người nuôi ong thu hoạch dc 40 l mật ong . Người đó muốn đổ số mật ong đó vào các chai , mỗi chai chứa 0,75 l mật ong . Hỏi cần có ít nhất bao nhiêu vỏ chai để chứa hết số mật ong đó

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