Table 918
a Company Desires to Set Up a Line to to Produce

Multiple Choice

Table 9.18
A company desires to set up a line to produce 60 units per hour.
The work elements and their precedence relationships are as follows.
$$\begin{array} { | c | c | c | } \begin{array} { c } \text { Work } \\\text { Element }\end{array} & \text { Time (sec) } & \begin{array} { c } \text { Immediate } \\\text { Predecessor(s) }\end{array} \\\hline 1 & 40 & - - \\2 & 30 & 1 \\3 & 50 & 1 \\4 & 40 & 2 \\5 & 6 & 2 \\6 & 25 & 3 \\7 & 15 & 3 \\8 & 20 & 4,5 \\9 & 18 & 6,7 \\10 & 30 & 8,9 \\\hline\end{array}$$
-Use the information in Table 9.18.What is the theoretical minimum number of stations versus the number of stations required using the longest work-element time method?

A) 4 versus 6
B) 5 versus 6
C) 4 versus 5
D) 5 versus 5