Kim Oanh Nguyễn Thị
Hỏi từ APP VIETJACK
Một đoàn xe chở xi măng gồm 4 xe.Xe thứ nhất trở 4 tấn,xe thứ hai chở 4 tấn 5 tạ và trở nhiều hôn xe thứ ba là 1 tạ.Xe thứ tư chở kém xe mức trung bình cộng của cả 4 xe là 3 tạ.Hỏi cả 4 xe chở được bao nhiêu xi măng
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1 câu trả lời 257
Đổi 4 tấn 5 tạ = 4,5 tấn
1 tạ = 0,1 tấn
3 tạ = 0,3 tấn
Xe thứ 3 trở được số tấn xi măng là :
4,5 - 0,1 = 4,4 tấn
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Hỏi từ APP VIETJACK22127
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