Problem 5-15 (Static)

Here is a network with the activity times shown in days:

a. Find the critical path.

A) A-B-D-E-G

B) A-C-D-F-G

C) A-C-D-E-G

D) A-B-D-F-G

The following table shows the normal times and the crash times, along with the associated costs for each activity.

ACTIVITY	NORMAL TIME	CRASH TIME	NORMAL COST			CRASH COST
A	7	6	$	7,000		$	8,000
B	3	2		5,000			7,000
C	4	3		9,000			10,200
D	5	4		3,000			4,500
E	2	1		2,000			3,000
F	4	2		4,000			7,000
G	5	4		5,000			8,000

b-1. If the project is to be shortened by four days, which activities, in order of reduction, would be shortened?

• A) A, F, D (or E)
• B) A, C, D (or F), F (or D)
• C) C, F (or E), D (or E)
• D) E, A

b-2. Find the resulting cost to crash. Resulting cost to crash _______

B(3) D(5) F(4) A(7) G(5 (C(4) E(2)