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标题: TT GWD18-14 [打印本页]

作者: season26 时间: 2006-12-31 13:53
标题: TT GWD18-14

The graph above shows the combined revenue, in billions of dollars, of a chain of food stores for each year over a four-year period. In 1994 a certain store’s revenue accounted for 2.0 percent of the combined revenue for that year, and in 1995 the same store accounted for 2.3 percent of the combined revenue for that year. What was the approximate percent increase in revenue for this store from 1994 to 1995 ?

A. 0.3%

B. 15.0%

C. 25.0%

D. 30.4%

E. 43.8%

图不会贴，我描述一下吧：the combined revenue for 1994 is 8 billion dollars, the combined revenue for 1995 is 10 billion dollars.

答案是E，我觉得是D，为什么呢？我的算法是(10*2.3/100-8*2/100)/(8*2/100),麻烦指导指导。。非常感谢！

作者: season26 时间: 2006-12-31 13:57
图片上传了，不知道行不行[attachimg]54624[/attachimg]

[此贴子已经被作者于2006-12-31 13:57:15编辑过]

作者: season26 时间: 2006-12-31 13:59
不好意思，鬼使神差地来了语法区，还蒙蒙地发了帖，不好意思，发错区了。。。

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