GMATprep TESR1中一道题 死活想不明白

joyspring

on a certain sight-seeing tour, the ratio of the number of woman to the number of children was 5 to 2, what was the number of men on the sight-seeing tour?

(1) the ration of the number of children to the number of  man was 5 to 11

(2) the number of women on the tour was less than 30

the answer is: Ｃ

怎么也想不明白，女人的数量少于３０，但是并不确定是多少，两个条件结合怎么能推出男人的数量呢。

难道只要推出一个数量范围也行，这好像不符合数据充分性题目的基本要求啊。

想了一天也没明白，哪位nn能帮助解答一下，不胜感激！

superlin5540

以下是引用joyspring在2007-9-26 15:52:00的发言：

on a certain sight-seeing tour, the ratio of the number of woman to the number of children was 5 to 2, what was the number of men on the sight-seeing tour?

(1) the ration of the number of children to the number of  man was 5 to 11

(2) the number of women on the tour was less than 30

the answer is: Ｃ

怎么也想不明白，女人的数量少于３０，但是并不确定是多少，两个条件结合怎么能推出男人的数量呢。

难道只要推出一个数量范围也行，这好像不符合数据充分性题目的基本要求啊。

想了一天也没明白，哪位nn能帮助解答一下，不胜感激！

这题我的思路是: 女:小孩:男=25:10:22. 女的小于30,那么女的人数只能是25,男的就是22了.所以选C

joyspring

原来解题要点在这啊，非常感谢