A project consisting of six activities is shown in the table.The project manager must achieve the lowest possible maximum resource requirement while adhering to a 34-day deadline.The lowest possible peak resource demand occurs: $$\begin{array} { | l | l | l | l | }
\hline \text { Activity } & \text { Duration (days) } & \text { Activity Cost } & \text { Predecessor } \
\hline \mathrm { K } & 10 & 140 & \
\hline \mathrm { L } & 8 & 64 & \mathrm {~K} , \mathrm { M } \
\hline \mathrm { M } & 12 & 96 & \
\hline \mathrm { N } & 6 & 120 & \mathrm { M } \
\hline \mathrm { P } & 14 & 168 & \mathrm {~L} \
\hline \mathrm { Q } & 12 & 144 & \mathrm {~N} \
\hline
\end{array}$$
A)On days 19 through 20 for an early start schedule.
B)On days 17 through 20 for a late start schedule.
C)On days 13 through 18 for an early start schedule.
D)On days 21 through 22 for a late start schedule.

Question

A project consisting of six activities is shown in the table.The project manager must achieve the lowest possible maximum resource requirement while adhering to a 34-day deadline.The lowest possible peak resource demand occurs: $$\begin{array} { | l | l | l | l | } 
\hline \text { Activity } & \text { Duration (days) } & \text { Activity Cost } & \text { Predecessor } \
\hline \mathrm { K } & 10 & 140 & \
\hline \mathrm { L } & 8 & 64 & \mathrm {~K} , \mathrm { M } \
\hline \mathrm { M } & 12 & 96 & \
\hline \mathrm { N } & 6 & 120 & \mathrm { M } \
\hline \mathrm { P } & 14 & 168 & \mathrm {~L} \
\hline \mathrm { Q } & 12 & 144 & \mathrm {~N} \
\hline
\end{array}$$
A)On days 19 through 20 for an early start schedule.
B)On days 17 through 20 for a late start schedule.
C)On days 13 through 18 for an early start schedule.
D)On days 21 through 22 for a late start schedule.

Quizplus · Accepted Answer

To find the lowest possible peak resource demand, we need to calculate the total float for each activity and identify the critical path. 
For this project, the critical path is A-D-E-F. 
Using an early start schedule and starting activity A on day 1, we can complete the critical path activities by day 18, leaving 16 days for the non-critical activities. 
Therefore, the lowest possible peak resource demand occurs from days 13 to 18.

A Project Consisting of Six Activities Is Shown in the Table.The