A straight note for $13,400 was executed at 8% annual interest. If the borrower actually paid $3,752 in interest, how many months did he take to pay it off?

He took 42 months to pay said amount.

Explanation:

To calculate how many months did it take to pay off interest amount to $3,752, we first have to calculate the per month interest payment. Calculation given below.

Per month Interest = (13,400 * 8%) / 12 = $ 89.33

Months it took to pay $ 3,752 = $ 3,752 / $ 89.33 = 42 months