At a certain university, 60% of the professors are women, and 70% of the
professors are tenured. If 90% of the professors are women, tenured, or both,
then what percent of the men are tenured?
我想問的是有60%教授是女性，那是否在這60%中女性的教授有70%是終生職?
這樣是否女性又是終生職的就佔了60%*70%=42%? 雖然這樣算必錯 但想知道錯在哪~
有點被這種題目給搞混 快考試了 請大神救救我