标题: Veritas数学题求教。。 [打印本页] 作者: SW88 时间: 2017-6-17 14:15 标题: Veritas数学题求教。。 The student-professor ratio at a certain university was 25:4, but when the university expelled eighty students for acts of civil disobedience, seventeen professors quit in protest. Which of the following could be the new student-professor ratio at the university?
