Answer:
57 months
Step-by-step explanation:
Calculation of number of lower monthly payment
Number of months = Percentage discount Points * Principal / Higher amount without point - Lower amounts with point
Number of months = $240,000 * 0.04 / $1,680 - $1,512
Number of months = $9600 / $168
Number of months = 57.14285714285714
Number of months = 57 months
Hence, it will take 57 months to cover the cost of the discount points if he take lower monthly payments .