You have prepared the following schedule for a project in which the key resources is a tractor. There are three tractors available to the project. Activities A and D require one tractor to complete while activities B, C, E and F require 2 tractors.
Develop a resource-constrained schedule in the loading chart that follows. Use the parallel method and heuristics given. Be sure to update each period as the computer would do. Record the early start (ES), late finish (LF) and slack (SL) for the newschedule.

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Legend ESI ID | EF SL LS DURNL 6 4 10 SL 5 D 10 10 F 12 10 212 Resource 0 20 0 55 Minimum slack Smallest duration Lowest identification number 73 10 D RES DUR ES LF SL 0 1 2 3 4 5 6 7B 9 10 11 13 14 15 C 2 4 D 15 F 2 2 Resources available 3 3 3 3 33 3 3 3 3 3 3 3 33