A project consisting of six activities is shown in the table.If the project manager decides to operate on an early start schedule,which of these days has the highest resource requirements? $$\begin{array} { | l | l | l | l | }
\hline \text { Activity } & \text { Duration (days) } & \text { Activity Cost } & \text { Predecessor } \
\hline \mathrm { K } & 10 & 140 & \
\hline \mathrm { L } & 8 & 64 & \mathrm {~K} , \mathrm { M } \
\hline \mathrm { M } & 12 & 96 & \
\hline \mathrm { N } & 6 & 120 & \mathrm { M } \
\hline \mathrm { P } & 14 & 168 & \mathrm {~L} \
\hline \mathrm { Q } & 12 & 144 & \mathbb { N } \
\hline
\end{array}$$
A) Day 5
B) Day 10
C) Day 15
D) Day 20

Question

A project consisting of six activities is shown in the table.If the project manager decides to operate on an early start schedule,which of these days has the highest resource requirements? $$\begin{array} { | l | l | l | l | } 
\hline \text { Activity } & \text { Duration (days) } & \text { Activity Cost } & \text { Predecessor } \
\hline \mathrm { K } & 10 & 140 & \
\hline \mathrm { L } & 8 & 64 & \mathrm {~K} , \mathrm { M } \
\hline \mathrm { M } & 12 & 96 & \
\hline \mathrm { N } & 6 & 120 & \mathrm { M } \
\hline \mathrm { P } & 14 & 168 & \mathrm {~L} \
\hline \mathrm { Q } & 12 & 144 & \mathbb { N } \
\hline
\end{array}$$
A) Day 5
B) Day 10
C) Day 15
D) Day 20

Quizplus · Accepted Answer

To determine the day with the highest resource requirements under early start schedule, we need to first calculate the earliest start day for each activity.

For the first activity K, earliest start day is day 1.
For activity L, earliest start day is day 11, as it depends on completion of activity K which has a duration of 10 days.
For activity M, earliest start day is day 11, as it also depends on activity K.
For activity N, earliest start day is day 23, as it depends on activity M which has a duration of 12 days.
For activity P, earliest start day is day 19, as it depends on completion of activity L which has a duration of 8 days.
For activity Q, earliest start day is day 29, as it depends on completion of activity N.

Now, we need to identify the day with the highest resource requirements. This will be the day on which the most number of activities are taking place.

From our earliest start day calculations, we can see that day 15 has the highest number of activities taking place - activities L and M are in progress, and activity N starts on this day. Thus, the correct answer is C.

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