题目如下:
On a certain sight-seeing tour, the ratio of the number ofwomen to the number of children was 5 to 2. What was the number of men on thesight-seeing tour?
(1) On the sight-seeing tour, the ratio of thenumber of children to the number of wen was 5 to 11
(2) The number of women on the sight-seeing tour wasless than 30
他答案选择了C 也就是说条件1+条件2 放在一起可以推算出有多少个men。但是他条件二中明显是说此次旅行中的女性是少于30的呢?
是不是因为人一定是整数所以,答案就是女性有25个,小孩儿10个,男性22个呢?
谢谢啊~~~作者: pattytraine 时间: 2012-11-6 06:41