Chapter 11, Problem 20RE

The following chart lists a number of tasks that must be completed for a crew of workers to construct a glynskz.

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Task	A	B	C	D	E	F	G	H	I	J
Time (in days)	2	2	3	1	1	2	3	4	3	3

Task A must be carried out before any other tasks can commence. Task B must precede tasks E and F, and both E and F must be completed before H can begin. Tasks C and D must precede task G, which in turn must precede I. Task J must be carried out last. It is assumed that there are enough workers to carry out any number of tasks simultaneously.

1. What is the fewest number of days needed to construct this glynskz? Find all critical paths.

2. Find the slack in C, D and E.