Consider the following project which starts on the 4 July. Calculate the Late Start date of the Design Screens task assuming there are no weekends. That is, the developers work 7 days per week.

	Task Name	Duration	Predecessors
1	Project started	0 days
2	Design screens	7 days	1
3	Develop input screens	5 days	2
4	Develop output screens	4 days	2
5	Design database	8 days	1
6	Develop database	7 days	5
7	Project completed	0 days	3,4,6

Calculate the answer manually. It is possible to check your answer with Microsoft Project if you change the calendar so that developers work 7 days per week.