今天做GMATPrep遇到一个问题

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.

这个题怎么解？

10% J = 4% F

apparently F> J

2 is sufficient