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giangnam225
2 năm trước
trong cửa hàng lương thực có 15 bao gạo , 8 bao đỗ ,5 bao lạc .Khối lượng của mỗi bao gạo , bao đỗ ,bao lạc tỉ lệ với các số 10; 6; 3 .Hỏi mỗi bao của mỗi loại nặng bao nhiêu kg ,biết rằng lượng gạo nhiều hơn lương đỗ và lạc 435kg Giúp mk với mọi người ơi!
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