Answer:
k = 9.73.
Explanation:
So, from the question we are given the following parameters or information which are going to be useful in solving this problem, They are:
=> The total amount that was borrowed = 120,000, the number of years to repay the loan = 10 years, the annual interest rate = 6% and the first payment = 800.
STEP ONE: Determine the present value.
We are going to need to determine the value for the compound interest which is given as: [(1 + 6%)^(1/12) - 1) × 12 = 5.841%
Therefore, the present value calculated as thus:
= 800/ (5.841 / 12) × ( 1 - 1/ (1 + 5.841/12)^(12 ×10)) = 72579.33.
STEP TWO: Determine the value of k.
The other value,r = k / (5.841 /12 × (1 + 5.841 /12)^(12 × 10))× [ (1 + 5.841 / 12)^(12 × 10 )- 1)/( 5.841 /12) -12 × 10).
= 4872.45 × k.
Therefore, 120,000 = 72579.33 + 4872.45 × k.
k = 9.73
