Table 1021
the Following Information Is Given About an Assembly Line

Table 10.21
The following information is given about an assembly line.
The desired output rate is 90 units per hourTable 10.21
The following information is given about an assembly line.
The desired output rate is 90 units per hour
$$\begin{array} { | c | c | c | } \hline \begin{array} { c } \text { Work } \\\text { Element }\end{array} & \text { Time } ( \mathrm { sec } ) & \begin{array} { c } \text { Immediate } \\\text { Predecessor(s) }\end{array} \\\hline \text { A } & 10 & - \cdot \\\text { B } & 6 & \text { A } \\\text { C } & 15 & \text { A } \\\text { D } & 20 & \text { B } \\\text { E } & 12 & \text { B } \\\text { F } & 14 & \text { C, E } \\\text { G } & 8 & \text { D } \\\text { H } & 20 & \text { F, G } \\\hline\end{array}$$
-Use the information in Table 10.21. If you are using the longest work- element time rule, how many workstations do you need?

A) 2 stations
B) 3 stations
C) 4 stations
D) more than 4 stations