Given that
A student has a total of 2000 in student loans that will be paid with 48 monthly installment loan with monthly payments of 49.30.
Explanation -
The total loan amount is 2000 and he pays 49.30 monthly installments for 48 months.
Then the amount he paid back will be
Amount = 48 x 49.30 = 2366.4
Let the APR is x%.
Then,
[tex]\begin{gathered} 2000+x\text{ \% of 2000 = 2366.4} \\ x\text{ \% of 2000 = 2366.4 - 2000 = 366.4} \\ \frac{x}{100}\times2000=366.4 \\ x=\frac{366.4}{20}=18.32 \end{gathered}[/tex]So the APR will be 18.32%.
Hence the final answer will be 18.32%.