The Operations Manager of a Body and Paint Shop Has

Multiple Choice

The operations manager of a body and paint shop has five cars to schedule for repair. He would like to minimize the makespan to complete all work on these cars. Each car requires body work prior to painting. The estimates of the times required to do the body and paint work on each are as follows: $$\begin{array} { c c c } \text { Car } & \begin{array} { c } \text { Body Work } \\\text { (hrs) }\end{array} & \begin{array} { c } \text { Paint } \\\text { (hrs) }\end{array} \\\text { A } & 10 & 2 \\\text { B } & 5 & 4 \\\text { C } & 7 & 5 \\\text { D } & 3 & 6 \\\text { E } & 1 & 7\end{array}$$
What is the idle time at the paint work center for the optimal schedule?

A) 1 hour
B) 2 hours
C) 4 hours
D) 7 hours
E) 10 hours