Management Science:
Using the following data:
Activity	Immediate Predecessor	Time
A	----	5
B	----	3
C	A,B	7
D	C	6
E	C	7
F	E	3
G	C	8
H	D,F,G	10
I	D,F	9
J	H	7
K	I,J	8
Required:
1. Prepare a Gantt chart.
2. Prepare an activity schedule