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log^a2018
2 năm trước
Một ô tô chở 50 thùng hàng, mỗi thùng cân nặng 32,4 kg .Sau khi đỡ hết hàng xuống thì ô tô nặng 4,5 tấn .Hỏi khi chưa đỡ hàng xuống ô tô nặng bao nhiêu tấn? Giúp mk vs ~~ thanks mn
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