Draw an activity on the arrow network for the activities of a project as shown in table, indicate the critical path and calculate the total float

Activity	description	immediate predecessor	Expected time (Weeks)
A		-	5
B		-	4
C		A	7
D		B	7
E		B	8
F		B	5
G		C,D	8
H		E,I	11
I		F	2
J		F	12
K		H,I	11

2.convert the above into activity on the node