Here is a screenshot of the question. It is for International Macroeconomics:

Exercise 1. Consider the Chinese-US real exchange rate, dened as, e = 55:3\": where 5' is the nominal exchange rate [dened as dollars per yuan}, and PUB and PCH are the price indices in the US and China. Suppose, further, that China produces and exports manufacturing goods, and the US produces and exports information-technology services. Both countries consume both type of goods and services in equal proportions. Thus, their price indices P\" = {Pc,1)'5[PciM)'5, where For is the price of information-technology services in country c, and Fair is the price of manufacturing goods in country .9. Suppose that in the last year the variation in the real exchange rate a was 5% and that all this variation was due to the imposition of a tariff by the US to the imports of Chinese manufacturing goods. Assume that, absent the tari, the lava:r of one price held for both goods. Compute the value of the tariff imposed by the US. Show your work