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Levanlinhrin09
2 năm trước
Hai quả thanh long và ba quả cam có giá 36 đô-la. Một quả thanh long có giá gấp 1,5 lần một quả cam. Hỏi mỗi quả thanh long và mỗi quả cam lần lượt có giá bao nhiêu tiền? Mỗi đáp án thuiii
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