If the borrower actually paid $3,752 in interest, he took 42 months to pay the whole amount.
Given,
Total amount - $13,400
Annual interest - 8%
Interest amount paid - $3,752
Thus,
In order to calculate how many months did it take for the borrower to pay off interest amount of $3,752, we first have to calculate the per month interest payment. For which the calculation is given below.
Per month interest = (13,400 * 8%) / 12
= $89.33
Months it took to pay $3,752
= $3,752 / $89.33
= 42 months
Hence, if the borrower actually paid $3,752 in interest, he took 42 months to pay the whole amount.
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