Tumbikti, a country on the Atlantis continent, has a government deficit of 40 billion while private investment

Question:

Tumbikti, a country on the Atlantis continent, has a government deficit of 40 billion while private investment exceeds private savings by 10 billion. What is Tumbikti's current account balance if its exchange rate is fixed?

Exchange Rate
The value of one currency for the purpose of conversion to another. Exchange Rate means on any day, for purposes of determining the Dollar Equivalent of any currency other than Dollars, the rate at which such currency may be exchanged into Dollars...