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 ?
正确答案是50+I/40，没明白。。。
你题干可能看晕了；the average (arithmetic mean) of 100 units of Country R’s currency and 1 percent of one’s annual income 就是说 average of（100+I/100），即为50+I/200。 此时再将2 percent of one’s annual income给加上，即为50+I/200+2I/100. 得出来的答案就是 50+I/40
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发表于 2018-6-25 15:46:38
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