For the following task list, do what is requested:

a)Obtain and display the correct sequence using the Critical Ratio rule. Show all completion times (cumulative values) for each job)

b)Obtain each task's delays and calculate the average delay value

c)Determine the number of late delivery tasks

\begin{tabular}{|l|c|c|} \hline Task & Processing Time (days) & Delivery Date (days) \\ \hline 1 & 7 & 30 \\ \hline 2 & 9 & 31 \\ \hline 3 & 11 & 55 \\ \hline 4 & 20 & 22 \\ \hline 5 & 6 & 47 \\ \hline \end{tabular}