One-year Treasury bills currently earn 2.15 percent. You expect that one year from now, 1-year Treasury bill

Question:

One-year Treasury bills currently earn 2.15 percent. You expect that one year from now, 1-year Treasury bill rates will increase to 2.65 percent and that two years from now, 1-year Treasury bill rates will increase to 3.05 percent. If the unbiased expectations theory is correct, what should the current rate be on 3-year Treasury securities?