9.19

\begin{tabular}{|c|c|c|} \hline TASK & PERFORMANCE TIME (min) & TASK MUST FOLLOW TASK LISTED BELOW \\ \hline A & 1 & - \\ \hline B & 1 & A \\ \hline C & 2 & A \\ \hline D & 1 & C \\ \hline E & 3 & C \\ \hline F & 1 & C \\ \hline G & 1 & D, E, F \\ \hline H & 1 & B \\ \hline I & G, H \\ \hline \end{tabular} 9.19 Because of the expected high demand for Mach 10, Creative Leisure has decided to increase manufacturing time available to produce the Mach 10 (see Problem 9.18). a. If demand remained the same but 300 minutes were available each day on the assembly line, how many workstations would be needed? b. What would be the efficiency of the new system, using the actual number of workstations from (a)? c. What would be the impact on the system if 400 minutes were available? [PX]