简单数学一道 求帮助 谢谢了 急急

guo573874201

At least 100 students at a certain high school study Japanese. If 4 percent of the students at the school who study French also study Japanese, do more students at the school study French than Japanese?



(1)16 students at the school study both French and Japanese.



(2)10 percent of the students at the school who study Japanese also study French.答案选B 毫无头绪呀  怎么算的呢 题里说一共是百分之四 怎么条件2就成了百分之10了呢

pbsimon

两者的基数不一样啊， 题目中指的是学法语的学生中有4%的人也学日语，条件二中指的是学日语的学生中有2%的人也学法语