Prep-PS-175

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175.        18356-!-item-!-187;#058&011490
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 annual income is I ?

(A)50+I/200

(B)50+3I/100

(C)50+I/40

(D)100+I/50

(E)100+3I/100

s

回复 4# bigpig


    知我者，bigpig呀，
   现在懂了，very thank you

蜂鸣

回复 4# bigpig


   

bigpig

回复 1# s


    计算所得税的方法是先计算出100单位的R国货币(就是100块钱)和个人收入的1%的平均值，及(100+1%*I)/2=50+I/200；然后这个平均值加上个人收入的2%，即可得到个人所得税：50+I/200+2%*I=50+I/40。所以答案是C

bigpig

我翻译一下，你再看看吧？

bigpig

s，是不是太长了，没看懂呀？