Question

A project has seven activities, each with totally deterministic
completion time.

Activity	Immediate Predecessor	Normal Time (days)
A	-	9
B	A	6
C	A	7
D	A	5
E	B,C	4
F	C,D	6
G	E,F	7

The project completion time (days) and total float (days) on activity 'F' respectively are

• A. 29,0
• B. 26,0
• C. 29,2
• D. 27,2

Answer 1

The correct option is A 29,0

Paths in Network

ABEG $\to$ 9+6+4+7= 26

ACEG $\to$ 9+7+4+7=27

ACFG $\to$ 9+7+6+7=29 $\to$ (Critical path)

ADFG $\to$ 9+5+6+7 = 27

Total float on activity 'F' 22-16-6 =0