There Are Three Jobs to Be Done and Three Resources

Essay

There are three jobs to be done and three resources with which to do them. Each resource will take a specific time to do each job, as shown in the following table:
$$\begin{array} { c } { \text { Machine } } \\\begin{array} { l c c c } \text { Job } & \text { A } & \text { B } & \text { C } \\\hline 1 & 6 & 9 & 4 \\2 & 4 & 4 & 3 \\3 & 8 & 7 & 4\end{array}\end{array}$$ What is the result of the row and column reductions?