Can you help me with questions ( 5 ) New total cost: $180,000 it's correct or not and explain?

N-6, $50,000 C4, 560,000 B N-6,550,000 C-5.560,000 Start Finish D N - 4.530.000 N-4,530,000 C = 2. $35,000 C = 4, $30,000 Times shown in wecks 1. What is the normal time to complete the project: The normal time to complete the project is 12 weeks. 2. What is the normal cost to complete the project: The normal cost to complete the project is => $50000 + $50000 + $30000 = $30000 = $160000 3. What is the shortest possible time to complete the project: Start/ A+B Finish = 4 + 5 = 9 weeks Start/C+D+ Finish = 2 + 4 = 5 weeks The shortest possible project completion time = 9 weeks 4. What is the per-week crash cost for? (1) Activity A (60,000 - 50,000)/(6-4) = 5000 (2) Activity B (60,000 - 50,000)/(6-5) = 10000 (3) Activity C (35,000-30,000)/(4-2) 2500 (4) Activity D (30,000-30,000)/(4-4) = cannot be accelerated 5. What is the lowest possible cost to achieve the time given in answer 3? Activity A: New cost: $60000 New duration: 4 weeks Activity B: New cost: 560000 New duration: 5 weeks Activity C: New cost: $30000 New duration: 4 weeks New duration: 4 weeks Activity D: New cost: $30000 New total cost: $180,000 Critical Path (s) Total Project Cost Notes Project Duration (weeks) 12 A-B A-B 11 10 A-B $160,000 $160,000+$5,000 = $165,000 $165,000 + $ 5,000 = $170,000 $170,000 + $ 10000 = $180,000 No activities crashed Activity A Crash Cost Included Activity A Crash Cost Included Activity C Crash Cost Included 9 A-B, C-D