\begin{tabular}{|c|r|r|r|} \hline T-Bill & \multicolumn{1}{|c|}{ Days to maturity } & Bank discount yield & \multicolumn{1}{c|}{ Bond equivalent yield } \\ \hline A & 30 & 12% & \\ \hline B & 60 & & 3.057% \\ \hline C & 90 & 8% & \\ \hline D & 180 & & 3.088% \\ \hline \end{tabular}