Suppose the Mundell-Fleming model with the following functions consumption, investment, net exports and currency demand:

C = 10 + 0,7Y

I = 20 - 10i

NX = 10 - 0,2Y + 0,05Y* + 2E

M^d/P = 10Y - 200i

Suppose that there is no expectation of exchange rate variation over time, nor any default risk on any assets. Government consumption is G = 25 and the real money supply is M / P = 2300. The external income is equal to Y * = 1000 and the external interest rate is equal to i * = 0.02.

Suppose a flexible exchange rate regime. Given the above parameters, what is the exchange rate?