Answer:
Monthly payment is $488.26
Explanation:
Loan amount: $20,000
Loan tenor: 4 years
Lending rate: 8% per year then monthly rate is 0.6667% per month
Interest occurred: monthly compounding
Payment: monthly
Number of payments: 48 (= 4 years * 12 months)
We can use formula in excel to calculate the payment =PMT(rate,number of payment,loan amount) = PMT(0.6667%,48,20000) = $488.26
I attached the calculation & checking in excel for your reference