A small metal-parts shop contains three machines€”a drill press, a lathe, and a grinder€”and has three operators, each certified to work on all three machines. However, each operator performs better on some machines than on others. The shop has contracted to do a big job that requires all three machines. The times required by the various operators to perform the required operations on each machine are summarized as follows:

The shop manager wants to assign one operator to each machine so that the total operating time for all three operators is minimized. Formulate and solve a linear programming model for thisproblem.

Transcribed Image Text:

Drill Press (min) Lathe min) 18 30 36 Grinder min) 35 28 18 Operator 29 25