Discuss Project crashing. Using the following example show how calculations are made to know which activity to crash.

Example

Activity I. D	Slope	Maximum crash time	Direct Costs
			Normal		Crash
			Time	Cost	Time	Cost
A	$ 30	3	5	$ 60	2	$ 150
B	20	2	7	30	5	70
C	40	1	6	40	5	80
D	25	4	10	25	6	125
E	50	2	8	70	6	170
F	0	0	6	30	6	180

Note the activity Sequences are:

A - B - D - F

A - C - E - F

The Indirect costs are :

A = 350

B = 300

C = 275

D = 200

E = 175

F = 150