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题目内容
Last year 40 percent of the students at College X took Biology I. If all of the science majors and 10 percent of the nonscience majors took Biology I, approximately what percent of the students at College X last year were science majors?
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6.1.3 双重叠应用题
6.1.3 双重叠应用题
以上解析由 考满分老师提供。