Answer:
Given,
The present value of the loan, P.V. = $ 51,000,
Annual rate of interest = 12 %,
So, the rate per month, r = [tex]\frac{12}{12}[/tex] = 1 % = 0.01,
Also, the monthly payment, P = $ 650,
Let n be the number of months,
Since, monthly payment of a loan is,
[tex]P=\frac{P.V. (r)}{1-(1+r)^{-n}}[/tex]
[tex]650=\frac{51000(0.01)}{1-(1+0.01)^{-n}}}[/tex]
By graphing calculator,
[tex]n=154.299447759\approx 154.29944[/tex]
Hence, it will take approximately 154 months to pay off the loan.