A Company Is Designing a Product Layout for a New

Multiple Choice

A company is designing a product layout for a new product. It plans to use this production line eight hours a day in order to meet projected demand of 480 units per day. The tasks necessary to produce this product are: $$\begin{array} { l l l } \text { Task } & \text { Time (secs) } & \text { Immediate Predecessor } \\\hline \mathrm { u } & 30 & \text { none } \\\mathrm { v } & 30 & \mathrm { u } \\\mathrm { w } & 6 & \mathrm { u } \\\mathrm { x } & 12 & \mathrm { w } \\\mathrm { y } & 54 & \mathrm { x } \\\mathrm { z } & 30 & \mathrm { v } , \mathrm { y }\end{array}$$ If the company wants the output rate to be equal to demand, what is the last task performed at the second workstation in the balance which uses the minimum number of workstations?

A) u
B) v
C) w
D) x
E) y