The Bender Construction Co. is involved in constructing municipal buildings and other structures that are used primarily by city and state municipalities.

This requires developing legal documents, drafting feasibility studies, obtaining bond ratings, and so forth. Recently, Bender was given a request to submit a proposal for the construction of a municipal building. The first step is to develop legal documents and to perform all steps necessary before the construction contract is signed. This requires that more than 20 separate activities be completed. These activities, their immediate predecessors, and their time requirements are given in Table 11.10.

As you can see, optimistic (a), most likely (m), and pessimistic

(b) time estimates have been given for all of the activities described in the table. Using the data, determine the total project completion time for this preliminary step, the critical path(s), and the slack time for all activities involved.