試題詳解

14. Assume a fixed basket of Goods to compute the CPI is 10 hotdogs and 10 hamburgers. What is the inflation rate when the price of hotdogs increases from 2 dollars to 3 dollars and the price of the hamburgers increases from 3 dollars to 4 dollars, compared with the base year?
(A) 20%
(B) 30%
(C) 40%
(D) 60%