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Mathematics, 24.07.2021 02:50 gabriellesmith1210
Trong một lớp học có tỉ số học sinh nam và nữ là 7:5.Tìm số học sinh của lớp biết số học sinh nam lớn hơn số học sinh nữ là 6 học sinh.
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Trong một lớp học có tỉ số học sinh nam và nữ là 7:5.Tìm số học sinh của lớp biết số học sinh nam lớ...
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