Please help with Q2. show steps. will upvote if helpful.

Question 2 [28] You have recently been employed as a consultant in a firm specialising in project management. As your first work assignment, you have been asked to answer a few questions relating to the information provided for a new project below. Activity Preceding Normal Accelerated Normal Accelerated Cost Slope activities (days) (days) (R) (R) (Rid) 10 6 4000 7200 800 B 20 14 7200 12000 800 36 28 3000 4600 200 D 22 16 6000 ? 400 E B 12 10 2000 3200 600 F B 16 8 1200 4400 400 G E 18 16 480 7200 1200 H DF 24 16 2400 4800 300 The fixed cost amount to R450 per day. These are not regarded as being committed. 2.1 Draw the activity on arc network diagram (4) 2.2 Determine the critical path. 2.3 Calculate the accelerated variable cost for activity D. 2.4 Calculate the latest completion time of activity E, i.e T (finish). 2.5 Set out the programme to be followed in order to reduce the total project time in a cost efficient manner and calculate the net saving that will be made. (15) 2.6 Give two limitations of this project acceleration technique. (2)