Calculate the critical path length (by creating network diagram) for the project activities given in the table.

What is the duration of the project?

Write the critical path?

What are the activities that can be delayed without affecting the schedule time of the project.

Number	Activity	Predecessor	Duration
1	Design house and obtain financing	--	3 months
2	Lay foundation	1	2 months
3	Order and receive materials	2	2 month
4	Build house	2,3	3 months
5	Select paint	3	2 month
6	Select carper	5	3 month