Answer and Explanation:
According to the scenario, computation of the given data are as follow:-
a).Work shift per day = 8 hours
Average of arriving trucks = 40
Loading time of workers = 8 min.
Earning of truck drivers = $20
Earning of workers = $18
If the truck drivers are engaged for one station, the cost may be focused on truck drivers in the system at a certain point. But if it's not, then the cost in the line must be dependent on truck drivers, since that's the best approximation of scope.
b). Hourly Cost for this System =Truck Driver Cost × No. of Trucks in an Hour + Worker Hourly Cost
= $20 × (60 ÷ 8) + $18
= $20 × 7.5+ $18
= $168
c). If they add additional dock. Then Their Total Cost in an hours
= $168 ×2
= $336 (because both worker take similar time so simultaneously 2 truck can be loaded)
If the cost doubles, the average no. of trucks service doubled too along with the ability of company to send out delivered trucks. So option 2 is better.