xA-5 C | ezto.mheducat building a new automated bakery in downtown Sandusky. Her
ID: 343857 • Letter: X
Question
xA-5 C | ezto.mheducat building a new automated bakery in downtown Sandusky. Here are the activities that need to be completed to get the new bakery built and the 4,200 4.400 2.400 2,800 4,700 10 B, C D. E a. Identify the critical path O A-C-D-F b. What is the normal project length? Normal project length weeks Project length weeks d. Bragg's loses $3,600 in proft per weak for every week the bakery is not completed How many weeks will the project take i we are willing to pay crashing cost as as it is less than $3,600? ReExplanation / Answer
Part A 0 9 9 19 19 26 A,9 B,10 D,7 0 9 9 19 19 26 26 30 F,4 ES EF 9 13 13 19 26 30 Activity',time C,4 E,6 LS LF 15 19 20 26 ES-Early Start EF-Early Finish LS-Late Start LF-Late Finish Activity Earliest Start (ES) Earliest Finish (EF) Latest Start (LS) Latest Finish (LF) Slack Time A 0 9 0 9 0 B 9 19 9 19 0 C 9 13 15 19 6 D 19 26 19 26 0 E 13 19 20 26 7 F 26 30 26 30 0 As slack time is 0 critical path A-B-D-F Normal project length 30 weeks When activities are crashed into their minimum Part B Activity Earliest Start (ES) Earliest Finish (EF) Latest Start (LS) Latest Finish (LF) Slack Time A 0 6 0 6 0 B 6 14 6 14 0 C 6 8 12 14 6 D 14 18 14 18 0 E 8 11 15 18 7 F 18 19 18 19 0 Project length when all activities are crashed to minimum 19 weeks Part C Crashing should be done on critical path as reducing time on non critical activities like C and E will not reduce project time There are two options in A and D whereby with crashing cost less than 3600, activity time is reduced by 3 weeks. With D there is reduction of 3 weeks but with less cost ie $2400. There fore crashing shall be done for activity D whereby project time will be reduced by 3 weeks from normal. Project length will reduce from 30 weeks to 27 weeks
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