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QUESTION 2. Use the Normal time given in the table below to reduce the project by 6 days. What is the added cost? Show what activity/activities need to crash for each day. What activity to crash for 1st day, what activity to crash for 2nd day, and so forth. Predecessor Normal none 6 5 b 5 b 3 a Activity cost (S) Normal $10 $22 $15 $21 $25 $12 Crash 20 28 22 25 30 18 e 2 C e 5 5 3 $20 22 m N f f C,8 i jik 3 8 Activity Description a Excavation, pour footers b Lay foundation Frame and roof Sewer (floor) drains f Install insulation 8 Pour basement floor i Install windows J Rough electrical wiring k Install furnace Exterior brickwork Install plasterboard Roof shingles Attach gutter Grading q Lay subflooring Lay driveway Kitchen, sink, appliances Painting Finish wood floor 20 23 Time (days) Crash 4 3 4 2. 4 3 3 2 5 6 8 3 2. 3 4 6 4 6 6 5 4 3 8 8 10 4 5 7 5 28 m n o n $20 $11 $16 $18 $23 $25 $12 $17 $20 $18 $15 $25 0 m 26 29 31 16 22 30 28 24 34 r t p a t V 8 8 w V 6