PM$\mathrm{.}66$ Real estate developer Russell Call was working with a few contractors to make a number of improvements to one of his rental properties. After gathering information from these contractors he determined the following durations, predecessors, and costs of all the required activities:

Activity Normal Time $($weeks$)$ Crashed Time $($weeks$)$ Normal Cost Crashed Cost Predecessor$($s$)$

A $32$ $$1,100$ $$3,200-$

B $21$ $$2,200$ $$2,560-$

C $42$ $$1,200$ $$2,500-$

D $73$ $$2,100$ $$2,500$ A

E $63$ $$1,500$ $$2,100$ B

F $42$ $$4,000$ $$5,380$ C

G $42$ $$1,650$ $$2,100$ D$,$ E

What is the overall duration of the project?

$14$

Which of the following activities has the lowest crash cost per week?

C

A

E

D

Which of the following activities has the highest crash cost per week?

C

B

G

F

Incorrect

Your Answer:

G

If you wanted to shorten the overall duration of the project, which activity should you crash first?

A

E

C

B

D

What is the total cost of crashing the project from its current duration down to $11$ weeks?

$300$

What is the total cost of crashing the project from its original duration to $9$ weeks?

NumberPM. $66$ Real estate developer Russell Call was working with a few contractors to make a number of improvements to one of his rental properties. After

gathering information from these contractors he determined the following durations, predecessors, and costs of all the required activities:

What is the overall duration of the project?

Which of the following activities has the lowest crash cost per week?

C

A

E

D

Which of the following activities has the highest crash cost per week?

C

B

G

F

If you wanted to shorten the overall duration of the project, which activity should you crash first?

A

E

C

B

D

What is the total cost of crashing the project from its current duration down to $11$ weeks?

What is the total cost of crashing the project from its original duration to $9$ weeks?