The formula to calculate the simple interest is given to be:
[tex]I=\frac{PRT}{100}[/tex]where I is the simple interest, P is the principal, R is the rate, and T is the time in years.
From the question, we have the following parameters:
[tex]\begin{gathered} P=2000 \\ R=12.25 \\ T=\frac{3}{12} \end{gathered}[/tex]Therefore, the interest is calculated to be:
[tex]\begin{gathered} I=\frac{2000\times12.25\times3}{100\times12} \\ I=61.25 \end{gathered}[/tex]The simple interest is 61.25.