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In a certain university, 60 percent of all sophomores are liberal arts majors, 24 percent are education majors, and the rest are majoring in other subjects or have not yet chosen a major. At the university, 55 percent of all sophomores are currently taking a psychology course. If $$x$$ percent of all sophomores are liberal arts majors who are currently taking a psychology course, what is the least possible value of $$x$$?
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1.1.3 固定条件下求极值
1.1.3 固定条件下求极值
以上解析由 考满分老师提供。
