PP T1 DS 23

[yiyiyi]

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

1) 16 student at the school study both French and Japanese
2) 10 Percent of the students at the school who study Japanese also study French

[Huang Hsin-Yi]

http://www.formosamba.com/phpBB3/viewtopi ... light=Prep

下次提問可先搜尋,而且請把答案PO上來