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标题: 请教一道关于income tax的Prep DS题 [打印本页]

作者: auweiyagmat    时间: 2006-11-25 23:13
标题: 请教一道关于income tax的Prep DS题

题目是

Before being simplified, the instructions for computing income tax in Country R were to add 2 percent of one's annual income to the average (arithmetic mean) of 100 units of Country R's currency and 1 percent of one's annual income
Which of the following reprentes the simplified formula for computing the income tax, in Country R's currency, for a person in that Country whose annual income is I?

答案是 50+ I/40

关键是我不太理解 to add 2 percent of one's annual income to the average (arithmetic mean) of 100 units of Country R's currency 的意思,请NN帮忙,谢谢!


作者: mymengming    时间: 2006-11-26 09:17

这个比较难理解,遇到这种情况看到名词就想定义就好,不用怕

to add……to……就是+,所以写2%AI+

average of就是【()+()】/2      所以是100+1%AI

所以就是2%AI+100+1%AI


作者: auweiyagmat    时间: 2006-11-26 19:39

谢谢!这下看懂了


作者: leepee    时间: 2006-11-26 21:09
以下是引用mymengming在2006-11-26 9:17:00的发言:

这个比较难理解,遇到这种情况看到名词就想定义就好,不用怕

to add……to……就是+,所以写2%AI+

average of就是【()+()】/2      所以是100+1%AI

所以就是2%AI+100+1%AI

NN~~~
作者: nickyespress    时间: 2006-12-12 12:19
2%AI+100+1%AI  "A"表示什么啊?
作者: timeislife    时间: 2007-2-28 04:49
2% AI + 1/2(100 + 1% AI)  第一个加上后面两者的平均. 楼上的解释错了




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