The wording of this question (Gmat Prep) puzzled me.. Any insight to this will be helpful:
Before being simplified; the instruction for computing income tax in Country R were to add 2 % of one's annual income to the average of 100 units of Country's R currency and 1 percent of one's annual income. Which of the following represents the simplified formula for computing the income tax, in County R's currency, for a person in that country whose annual income is I
answer: 50 + l/40