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Mathematics, 25.07.2021 23:40 rafeychoudhry4571

Một trường trung học cơ sở có 1050 học sinh số học sinh của 4 khối 6 7 8 9 lần lượt tỉ lệ với các số 9 8 7 6 tính số học sinh của khối

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Một trường trung học cơ sở có 1050 học sinh số học sinh của 4 khối 6 7 8 9 lần lượt tỉ lệ với các số...
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