QUESTION 2.

Use the Normal time given in Table 2 to reduce the project by 8 days. What is the total added cost? Show the activity/activities that need to crash for each day. For example, what activity to crash for day 1, what activity to crash for day 2, and so forth.

TABLE 2				Time (days)		Activity cost (S)
Activity	Description	Predecessor	Normal	Crash		Normal	Crash
A	Excavation, pour footers	none	6	4		$10	20
B	Lay foundation	A	5	3		$22	28
C	Frame and roof	B	5	4		$15	22
E	Sewer (floor) drains	B	3	2		$21	25
F	Install insulation	C	5	4		$25	30
G	Pour basement floor	E	5	3		$12	18
I	Install windows	F	4	3		$20	22
J	Rough electrical wiring	F	3	2		$20	20
K	Install furnace	C,G	8	5		$11	23
L	Exterior brickwork	I	8	6		$16	28
M	Install plasterboard	J,K	10	8		$18	26
N	Roof shingles	L	4	3		$23	29
O	Attach gutter	N	5	2		$25	31
P	Grading	O	7	3		$12	16
Q	Lay subflooring	M	5	4		$17	22
R	Lay driveway	P	8	6		$20	30
T	Kitchen, sink, appliances	Q	8	4		$18	28
V	Painting	T	8	6		$15	24
W	Finish wood floor	V	8	6		$25	34