Anita borrows 540,000 at annual effective interest rate 3%. She repays this loan by paying off only the interest due at the end of each year to the lender and depositing a level amount Q at the end of each year into a sinking fund account paying 6% APY. The goal is to accumulate the full balance of the loan amount in the sinking fund at the end of 10 years.

b. What rate (AEIR) does Anita end up paying on this loan?