Mathematics, 03.08.2021 04:50 queenjanet46

trong một lớp học có 180 sinh viên . Trong số này có 55 sinh viên chọn môn anh văn ,45 sinh viên chọn môn pháp văn và 15 sinh viên chọn cả anh văn và pháp văn. Hỏi có bao nhiêu sinh viên không theo học anh văn cũng không theo học pháp văn?

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trong một lớp học có 180 sinh viên . Trong số này có 55 sinh viên chọn môn anh văn ,45 sinh viên chọ...

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