A software development project is based on the following:

Activity	Predecessor	Successor	Normal Time	Normal Cost		Crash Time	Crash Cost
A		C	8	$	200	7	$	300
B		D	10		300	6		400
C	A	E	2		800	1		1000
D	B	E	4		200	2		300
E	C, D		15		500	11		800

a. What are the normal project completion time and normal cost?

b. What is the critical path?

• C-E

• A-C-E

• D-E

• B-D-E c. What is the new project completion time and the new critical path?