Table 910
a Firm of Four Departments Has the Following
Trip

Table 9.10
A firm of four departments has the following
trip matrix and current block plan of all departments:
Trips Between Departments
$$\begin{array} { | c | c | c | c | c | } \hline & \mathrm { A } & \mathrm { B } & \mathrm { C } & \mathrm { D } \\\hline \mathrm { A } & - & 12 & 10 & 8 \\\mathrm {~B} & & - & 20 & 6 \\\mathrm { C } & & & - & 0 \\\mathrm { D } & & & & - \\\hline\end{array}$$
Current Layout
$$\begin{array} { | c | c | } \hline A & B \\\hline C & D \\\hline\end{array}$$
-Use the information in Table 9.10.What is the load-distance score for the current layout? (Assume rectilinear distance and that the distance between departments A and B is one unit of distance.)

A) less than or equal to 60
B) more than 60 but less than or equal to 75
C) more than 75 but less than or equal to 90
D) more than 90