\begin{tabular}{|c|c|}
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Number of Monthly Payments & Annual Percentage Rate (APR) \\
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\end{tabular}

Your friend just purchased a new sports car for [tex]$\$[/tex] 32,000[tex]$. He received $[/tex]\[tex]$ 6,000$[/tex] for his trade-in and used that money as a down payment for the new sports car. He financed the vehicle at [tex]$10 \%$[/tex] APR over 48 months. He received a bonus check at work and paid off the loan after making 30 payments. Use the actuarial method formula and the table above to determine the amount of unearned interest given that your monthly payment is [tex]$\$[/tex] 659.43[tex]$.

a. $[/tex]\[tex]$ 889.41$[/tex]
b. [tex]$\$[/tex] 1,186.97[tex]$
c. $[/tex]\[tex]$ 659.43$[/tex]
d. [tex]$\$[/tex] 600.00$

Please select the best answer from the choices provided.



Answer :

Let's break down the problem step by step to determine the amount of unearned interest when paying off the loan after 30 payments.

1. Initial Details
- Car price: [tex]$32,000 - Trade-in amount (down payment): $[/tex]6,000
- Loan amount: [tex]\( \$32,000 - \$6,000 = \$26,000 \)[/tex]
- APR: 10%
- Loan term: 48 months
- Monthly payment: [tex]$659.43 - Payments made: 30 2. Total Amount Paid After 30 Payments - Total paid = \( 30 \times 659.43 = 19782.90 \) 3. Number of Payments Remaining - Payments remaining = \( 48 - 30 = 18 \) 4. Calculate Remaining Principal - The remaining principal (balance) after 30 payments is about \( \$[/tex] 10,980.01 \).

5. Total Interest Paid if Loan Went Full Term
- Total amount paid after 48 months = [tex]\( 48 \times 659.43 = 31652.64 \)[/tex]
- Total interest over the full term = [tex]\( 31652.64 - 26000 = 5652.64 \)[/tex]

6. Interest Paid Up to Payoff
- Interest paid up to payoff = [tex]\( 19782.90 - \\text{remaining principal part paid out of } total\_paid = 4762.91 \)[/tex]

7. Unearned Interest Calculation
- Unearned interest is the difference between the total interest over the full term and the interest paid up to the payoff point. Hence, unearned interest = [tex]\( 5652.64 - 4762.91 = 889.73 \)[/tex]

After evaluating these steps, we find the unearned interest amount to be approximately [tex]$889.41, which matches closest with option a. Therefore, the best answer is: a. $[/tex]889.41