Hỏi còn lại bao nhiêu lít dầu
Có 5 thùng dầu, mỗi thùng chuwas145 lít. Người ta lấy ra 385 lít dầu từ các thùng đó. Hỏi còn lại bao nhiêu lít dầu
Bài giải
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Bài giải
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