If a U.S. dollar purchases 90 Argentinean pesos, and a gallon of milk costs $4 in the U.S. and 120 pesos in Argentina what is the real exchange rate? 2 gallons of Argentinean milk/1 gallon of U.S. milk 3 gallons of Argentinean milk/1 gallon of U.S. milk 1 gallon of Argentinean milk/3 gallon of U.S. milk I gallon of Argentinean milk/2 gallon of U.S. milk

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