The activity involved in a certain project have been identified as follows: Activity Time (weeks) No. of men required Precedence requirement A 5 1 - B 10 1 A C 8 2 A D 6 3 B,C E 7 1 B,C F 4 2 E G 4 2 D,F H 2 1 G If there are three men available at any one time how long would the project take and how would you allocate the men to the activities?

\begin{tabular}{l|c|c|c} \hline Job & \begin{tabular}{c} Time \\ (weeks) \end{tabular} & \begin{tabular}{c} No. of Men \\ required \end{tabular} & \begin{tabular}{c} Precedence \\ requirements \end{tabular} \\ \hline A & 5 & 1 & - \\ \hline B & 10 & 1 & A \\ \hline C & 8 & 2 & A \\ \hline D & 6 & 3 & B,C \\ \hline E & 7 & 1 & B,C \\ \hline F & 4 & 2 & E \\ \hline G & 4 & 2 & D,F \\ \hline H & 2 & 1 & G \\ \hline \end{tabular}