International Finance - International Parity condition - Expected exchange rate

Consider the following financial data:

UK DM
Inflation (expected annual) 10% 4%
1 Year Interest Rate 12% ??
Spot Exchange Rate (DM/pound) 3

Assuming the international parity conditions hold perfectly, what is the expected exchange rate in one year?

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...c being that real rate of interest should be same across currencies).
Thus interest rate for DM= 10%-4%= 6%
The exact formula above gives 5.89%.

F DM/£ / S DM/£ = (1+ r DM ) / (1+ r £) = (1+ i GER ) / (1+ i UK )

= (1.0589)/ (1.12) = 0.9454

You have not given the current spot rate for DM/ £
Assuming it is 3 DM get you a £ now.
After a year for each £ you will get 0.9454 X 3= 2.8362 DM

This results form the fact that if international ...