请教一道PREP题

卖菜熊

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 represents the simplified formula for computing the income tax, in Country R's currency, for a person in that country whose auunal income is I?

A. 50+  I/200

B. 50+ 3I/100

C。50+ I/40

D. 100+ I/50

E. 100+ 3I/100

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答案是C。

不会做。。。请教题目是什么意思，完全不明白“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. ”讲什么

谢谢。

[此贴子已经被作者于2008-7-29 15:10:23编辑过]

kuroyosama

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.

这句话是，100个单位的r国货币和1%的个人收入的平均值加上2%的个人收入，所以这道题就等于（100+1%I)/2+2%I=50+1%I/2+2%I=50+I/200+4I/200=50+I/40

卖菜熊

哦，原来这样的。谢谢楼上，昨天看题看傻掉了，今天一看就明白了。

kuroyosama

呃，我觉得这道题目太bt了。简直在考语法呀。我断了两次句子才明白。熊熊，你要是在考场上碰到这种题目，多半就是幸与不幸了。因为很有可能你进入高分区了……所以要数学和语法以及逻辑相结合……