请教一道PREP数学题 明天上考场

颜颜9

Beforing being simplified, the instructions for computing income tax in Country R were to add 2% of one's annual income to the average ( arithemetic mean ) of 100 units of Country R's currency and 1% of one's annual income. Whick of the following represents the simplified formula in Country R's currency, for a person in that country whose annual income is I? 答案是 50+I/40
我觉得我没读懂题目···

forrest0426

LZ加油！明天考试的共勉！！

boajin

顶上去   题目看不懂   一到unit这单词我就发懵

xxrjulia

add 2%*I to the average of (100+1%*I)，那就是2%*I +(100+1%*I)/2=答案咧~

xxrjulia

关键还是读题吧。。。呵呵。。

07170004hjq

这题我也做错了 and断句断错 谢谢楼上的回答啊 精辟啊