Question

Bruce took out a loan for $19,500 at 13.5% interest for 316 days . his loan terms for exact interest. how much will he have to pay back at the end of the loan.?

Answer 1

You have not given whether the interest rate is per annum(per 1 year) or per month. I am taking it to be per annum.
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Principal(P) = $19,500
Rate(R) = 13.5%
Time(T) = 316 days = $\frac{316}{365}\ years$

Interest = $\frac{PTR}{100} = \frac{19500*13.5*316}{100*365}=2279.1$

$Amount\ = Principal\ +\ Interest=19500+2279= \boxed {21779.1}$

He has to pay $21779.1 at the end of the loan.