Consider the following network table indicating the duration of the various activities as well as the variable costs of these activities excluding direct material: Normal Accelerated Duration (days) Variable cost (NS) Duration (days) Variable cost (NS) 12 10 14 12 10 5 9 2 A-B A-C A-D B -E E-F C-D C-F D-G F-G TOTAL 550 720 2 100 800 1 350 450 1 080 2 720 5 CON +100+ 580 850 300 1 050 1 670 750 1 430 3 020 840 12 490 680 10 450 In addition to the above variable costs, direct material for the project will amount to N$36 000 and fixed costs will amount to N$280 per day. These fixed costs are not regarded as committed fixed costs. Marks REQUIRED 2.1. Draw a network diagram based on the normal times given, illustrating the critical path routes and determine the normal cost and duration to complete the project (N.B use the activity on node (AON) approach). 2.2. Determine the earliest starting time and the latest starting time of each activity. 4 18 Page 14 of 15 Calculate The cost slope for activity C-F. 3 2.3. Total 25