Answer:
Step-by-step explanation:
Part a)
Year 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Benefits $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000
Costs
Construction materials $50,000,000 $50,000,000 $50,000,000 $50,000,000 $50,000,000
Labor costs $20,000,000 $20,000,000 $20,000,000 $20,000,000 $20,000,000
Transport disruption cost $200,000,000 $200,000,000 $200,000,000 $200,000,000 $200,000,000
Net benefit -$270,000,000 -$270,000,000 -$270,000,000 -$270,000,000 -$270,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000
Part b)
Year 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Benefits $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000
Costs
Construction materials $50,000,000 $50,000,000 $50,000,000 $50,000,000 $50,000,000
Labor costs $20,000,000 $20,000,000 $20,000,000 $20,000,000 $20,000,000
Transport disruption cost $200,000,000 $200,000,000 $200,000,000 $200,000,000 $200,000,000
Net benefit -$270,000,000 -$270,000,000 -$270,000,000 -$270,000,000 -$270,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000 $600,000,000
P V F at 5% $0.9524 $0.9070 $0.8638 $0.8227 $0.7835 $0.7462 $0.7107 $0.6769 $0.6447 $0.6140 $0.5848 $0.5570 $0.5305 $0.5052 $0.4811
P V of net benefit -$257,148,000 -$244,890,000 -$233,226,000 -$222,129,000 -$211,545,000 $447,720,000 $426,420,000 $406,140,000 $386,820,000 $368,400,000 $350,880,000 $334,200,000 $318,300,000 $303,120,000 $288,660,000
Present value of net benefit = sum of P V of net benefit = $2,461,722,000
cheers i hope this helped !!