Question 968698: if paul borrowed $1000 and took 5 years to repay the loan and $1800 interest. what was the per annum simple interest rate? Answer by amarjeeth123(569) (Show Source):
You can put this solution on YOUR website! Simple interest I=Ptr/100
Plugging in the values we get
1800=1000*5*r/100
50r=1800
r=36 per cent
The rate of interest was 36 percent.