Use Ordinary Interest Note to Be Discounted at 11

Short Answer

Use ordinary interest:
$\begin{array}{|l|l|l|l|l|l|l|l} \hline & \text { Rate of } & & \text { Maturity } & \text { Date Note } & \text { Date Note } & \text { Discount } & \\\text { Principal } & \text { Interest } & \text { Time } & \text { Value } & \text { Made } & \text { Discounted } & \text { Period } & \text { Proceeds } \\\hline \$ 90,000 & 10 \% & 150 \text { days } & \text { A } & \text { May 3 } & \text { June } 12 & \text { B } & \text { C }\\\hline \end{array}$
Note to be discounted at 11%