Of the people who attended a workshop, 60 percent were teachers and some of the teachers were teachers of language arts.What percent of the people who attended the workshop were teachers of language arts? (1)200 people attended the workshop. (2)72 of the teachers who attended the workshop were not teachers of language arts. 答案是C。但我认为是E啊,告诉200个人,可推出120个是老师,告诉72个不是教语言的,但又没说老师就两种一种教语言,一种不教,所以不能推出多少人教语言。大家讨论讨论!
我和楼主一样一开始认为72 of the teachers who attended the workshop were not teachers of language arts. 不等同于 The number of the teachers who attended the workshop and does not teach language arts was 72.