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sangbuitck
2 năm trước
Một người bỏ ra 90000 đồng tiền vốn mua trái cây. Sau khi bán hết số trái cây, người đó thu được 18000 đồng tiền lãi. Hỏi: a, Tiền bán trái cây bằng bao nhiêu phần trăm tiền vốn? b, Người đó đã lãi bao nhiêu phần trăm số tiền vốn? ko thik ai = bc
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