Answer:
The interest rate implicit in this agreement is 5%
Step-by-step explanation:
A fix periodic payment made for a specific of time is known as annuity.
The 15 annual loan payment of $27,709 is an annuity payment and we will use the following formula to calculate the interest rate.
PV of annuity = P x annuity factor
Where
P = annual payments = $27,709
Placing values in the formula
$287,610 = $27,709 x annuity factor
Annuity factor = $287,610 / $27,709
Annuity factor = 10.37966
The annuity factor of 10.37966 for 15 years is for 5% interest rate.