1. Activities A and B are the first two activities of a project. Activity A takes 20 days to complete (5 day a week, 8 hour a day [5/40]) with a 6-member crew at an average hourly rate of $45. Activity B takes 14 days to complete, working 5/40 with a crew of 3, at an average hourly rate of $60. Both activities must be completed by day 30. Both activities are interruptible. Activity A has a critical Early Start at day 0, and non-critical Late Finish at day 30 Activity B is non-critical and it has a SS relationship with activity A, with 6 days of lag, and a LF at day 30 Material usage for activity A is 450 units per day, at $650/unit. (Waste included) Material usage for activity B is 1500 units per day, at $950/unit. (Waste included) Activity A uses 40% of a backhoe, at $1995/day. Activity Buses 60% of a pump truck, at $2500/day. a. Calculate the total cost of activities A and B combined. b. Provide a bar chart for the most optimum cash flow and labor utilization. Show the daily values for both at the bottom of the bar chart. 2. For the following project draw a node network and a bar chart. Then perform resource leveling trying to reduce the daily resources needed to no more than 8 laborers per day. If you cannot get it down to 8, manually shift resources so that the project starts low and gradually increases towards the middle and gradually decreases toward the end of the project. IPA Activity A B D Duration (days) 6 2 9 4 7 5 10 8 laborers 2 3 3 3 WN 4 2 E F G H A,B B D DE C,F,G C G HI 3 NNW I min 3 2 1 2 2