You have $4,000. The current interest rates on dollar- and pound-denominated deposits for 180-day maturity are i^$=0.02 and i=0.03, respectively. The current spot exchange rate is e=$2/. Assume that you don't mind bearing foreign exchange risk. You expect the spot rate in 180 days to be $1.90/. What strategy would you follow, and why? After 180 days, the actual spot rate turns out to be $1.80/. Are you pleased with your decision? Why or why not?

Also, what steps do I need to take to learn how to answer a question like this on my own.... especially the math.