Toyco produces toy shovels on a 20 ton press. The steps taken by the operator to produce one shovel are:
Removed finished shovel and put on conveyor 0.1min
Remove debris from dies 0.2min
Spray dies with oil 0.1min
Check raw material for defects 0.3min
Place flat sheet into press 0.1 min
Press cycles automatically 1.0 min
the operator is paid 10/h and the press 100/h to run. Raw material in shovel cost and it sells for 4.00. what is the optimal number of process for one operator low unit cost? Draw work machine chart for this situation.