Consider the following:

Activity	Normal time	Predecessor
A	4	---
B	2	---
C	3	---
D	1	A
E	4	B
F	6	C
G	2	D,E

If the duration of activity F is reduced by 1 days, the duration of the project can be reduced by _____ days. (Fill a number in the blank.)

Your Answer:

The following table shows the durations, interdependencies and crash costs per day of the activities of a project. Suppose that the crash time of all activities are zero:

Activity	Duration (days)	Immediate predecessor	Crash cost per period
A	2	-	$100
B	3	-	$150
C	11	-	$200
D	5	A	$30
E	7	B	$400

What is the cost for crashing the project by 1 day?