Answer:
12.15%
Step-by-step explanation:
The interest rate on the loan is the rate that solves the equation
![P=(A_(1) )/(1+r) +(A_(2))/((1+r)^(2) ) +(A_(3))/((1+r)^(3) )](https://img.qammunity.org/2021/formulas/business/college/n0tm3fevrhuieao3vcj7agp6ceikusgt08.png)
Where P = loan amount
A = the annual repayment for each year
r = the interest rate
![2,000,000=(219,000 )/(1+r) +(219,000)/((1+r)^(2) ) +(2,300,000)/((1+r)^(3) )](https://img.qammunity.org/2021/formulas/business/college/bx2dhdfuepwax7jjsjd3lntex65kopwxrk.png)
Using interpolation or a financial calculator, the rate that solves the equation is 12.148504% = 12.15%.