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标题: 明天就要考，求助一道prep题，太难懂了 [打印本页]

作者: maolin_16 时间: 2007-11-1 19:37
标题: 明天就要考，求助一道prep题，太难懂了

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.

key is B

I don't know the difference between the students at the school who study French also study Japanese and the students at the school who study Japanese also study French. Why is the key B?

Thank you!

作者: yuruozj 时间: 2007-11-1 19:47

题目是说一个学校超过100人学习日语，学习法语的人中有4%同时学习日语，问学习法语是不是比学习日语的人多？

条件（1）16人学习两种语言

（2）学习日语的人中10%同时学习法语

题目的关键是同时学习两种语言的人，根据条件1只能推出有400人学习法语，但题目不明确学日语到底多少人，所以无法确定；根据条件2，同时学习两种语言的人占学习日语的人的10%，而占学法语的人只有4%，显然学法语的人比较多。所以选B。

作者: yuruozj 时间: 2007-11-1 19:53

我也是明天考呢，呵呵~你在北京考吗？我是下午场的。

我也有道Prep的数学题不懂呢，有空帮我参谋参谋吧~

http://forum.chasedream.com/dispbbs.asp?boardID=22&ID=285434&page=1

作者: maolin_16 时间: 2007-11-1 20:05

Thank you very much!

我在上海考，晚上场的,心理好没底丫。

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