Answer: $1,489
Explanation:
The down payment will be the difference between the cash price of $10,000 and the present value of the $250 payments at the end of each month for 4 years.
Period = 4 * 12 months = 48 months
Interest = 18/12 = 1.5%
Present value = 250 * [tex]\frac{1 - ( 1 + r)^{-n} }{r} = 250 * \frac{1 - ( 1 + 0.015)^{-48} }{0.015}[/tex]
= 250 * 34.04255364558839163
= $8,510.64
= $8,511
Down payment = 10,000 - 8,511
= $1,489