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B A 12 10) A project has the activity duration and cost information indicated in the table where all times are in weeks. What is the total cost for completing this project in 40 days? Normal Normal Activity Predecessor Time Cost Crash Time Crash Cost A 8 SR12,000 5 SR22,000 SR18,000 SR32,000 15 SR22,000 SR62,000 SR9,000 SR18,000 SR15,000$ SR35,000 SR5,000 5 SR8,000 SR13,000 SR23,000 12 SR20,000 SR32,000 H SR45,000 4 SR56,000 B 2 G D 8 6 H 6 3 IB C 2 D 2 IE 9) Use the information in the table (all times are in days) to determine the lowest total cost for a 20-day project if the base cost for each activity finished in normal time is SR1,000. Normal Minimum Crash Cost Activity Time Time (SR/day) Predecessor A 10 SR70 6 SR40 2 B 14 SR60 IC 6 4 SR80 SR90 .E 10) A project has the activity duration and cost information indicated in the table where all times are in weeks. What is the total cost for completing this project in 40 days? Normal Normal Activity Predecessor Time Cost Crash Time Crash Cost A SR12,000 5 SR22,000 B A SR18,000 SR32,000 C A SR22,000 SR62,000 D SR9,000 2 SR18,000 E C 5R15,000 5 SR35,000 E SR5,000 B SR8,000 SR13,000 SR23,000 H A 12 SR20,000 SR32,000 5R45,000 SR56,000 8 112 115 8 B P F 7 G D 3 5 2 11) Task H has duration of 5 days, an early start of 25 days, an early finish of 30 days, a late start of 25 days, and a late finish of 30 days. There are days of slack for task H. 12) An activity has an optimistic time estimate of 25 days, a most likely estimate of 29 days, and a pessimistic estimate of 34 days. What is the expected duration of the activity? 13) Activity Z has estimates a = 5, b= 12, m= 7; activity X has estimates a = 5, b= 11, m= 6; and activity Y has estimates a = 3, b = 11, m = 8. Which activity is the longest and shortest