Answer:
The highest affordable APR is 7.192%.
Explanation:
A person wants to borrow $93,000 from local bank to buy a new sailboat.
The maximum affordable monthly payment or EMI is $1,850.
The loan period is 60 months.
Suppose, monthly interest rate = r
93000 = [tex]1850\ \times\ \frac{ \frac{1\ -\ 1}{(1+r)^6^0}}{r}[/tex]
At r =.6 %
Present value of loan repayment = $92984.94
At r=.5%
Present value of loan repayment = $95692.29
Through the method of interpolation,
r= .5% + ((95692.29 - 93000)/( 95692.29 - 92984.94))*(.6% - .5%)
r=.5994%
Annual interest Rate
= .5994%*12
= 7.192%.