each student in a group of 30 students studies German,Italian,or both ,The total number of students
each student in a group of 30 students studies German,Italian,or both ,The total number of students
studing German is three more than the total number of students studing Italian,If the number of students that study both subjects is the same as the number of students that study exactly one subjec,how many students in the group study only Italian?
studing German is three more than the total number of students studing Italian,If the number of students that study both subjects is the same as the number of students that study exactly one subjec,how many students in the group study only Italian?
英語人氣：288 ℃時間：2020-04-17 18:12:56
優(yōu)質(zhì)解答
each student in a group of 30 students studies German,Italian,or both ,意思是：單獨學(xué)德語+單獨學(xué)意大利語+兩門都學(xué)的學(xué)生合計30人.studing German is three more than the total number of students studing I...
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