2. Compute the amount of time that the completion of each event can be delayed without affecting the overall project.

Shameem and Ramesh are building contractors who specialize in the construction of private homes, ware- houses, and small business (less than 20,000 sq ft of floor space). Both Shameem and Ramesh entered a carpentery apprenticeship programme in the early 2000s and, upon completion of the apprenticeship, be- came skilled craftsmen in 2006. Before going into their own business, they worked for several local building contractors in Chennai. Typically, the Venkat Brothers submit competitive bids for the construction of proposed dwellings. Upon getting their bids confirmed and receiving orders, various aspects of the construction (electrical wiring, plumbing, brick laying, painting, and many more works) are further subcontracted. Shameem and Ramesh, however, perform all carpentry work. In addition, they plan and schedule all construction operations, fre- quently arrange small interim financing and supervise various construction activities