Answer: the original amount of the loan is $52000
Explanation:
Let P represent the original amount of the loan. We would apply the formula for determining simple interest. It is expressed as
I = PRT/100
Where
P represents the principal or the original amount of the loan.
R represents interest rate.
T represents the duration for which the loan was given in years
I represents the interest.
From the information given,
R = 5.75%
T = 4 year
After four years, the loan has increased $11960 in interest. This means that
I = 11960
Therefore,
11960 = (P × 5.75 × 4)/100
11960 = 23P/100 = 0.23P
P = 11960/0.23
P = 52000