Independent solution

How to solve this Loan Amortization question

Setup

Setup

Split the ten repayments at the interest-rate change after year five.

20000=Xa50.11+X(1.11)5a50.1220000=Xa_{\overline5|\,0.11}+X(1.11)^{-5}a_{\overline5|\,0.12}

Model

Model

The first block uses the 11% annuity factor; the second block uses 12% at its local date and is then discounted through the first five years at 11%.

20000=X(3.69590+3.60478/1.68506)20000=X(3.69590+3.60478/1.68506)

Compute

Compute

The combined present-value factor is 5.83516, giving a payment of 3,427.50.

20000=5.83516X20000=5.83516X

Answer

Answer

Therefore the annual payment is 3,427.50, choice C.

X=3427.50(C)\boxed{X=3427.50\quad\text{(C)}}