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 B uses 60% of a pump truck, at $2500/day. a. Calculate the total cost of activities A and B combined.
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 B uses 60% of a pump truck, at $2500/day. a. Calculate the total cost of activities A and B combined.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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only do part A
![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 B uses 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.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fed7b56a3-2e66-4877-848b-86d54658cb11%2F17eef760-8f7d-4def-8108-fb82097e8304%2Fguv02dc_processed.png&w=3840&q=75)
Transcribed Image Text: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 B uses 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.
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