In: Operations Management
A widget machine makes 900 units if it runs continuously for 8 hours. Every 10 hours, the machine requires 30 minutes of maintenance during which no units are made. What is the productivity of the machine?
Production rate for non stop run = 900 /8 = 112.5 per hour
For a 10 hours run, the machine will make 112.5x10 =1125 widgets.
The effective time for making these widgets will include
maintenance time of 30 min.
Hence the productivity = 1125 /10.5 = 107.14 widget per hour
The required answer is 107 per hour
or 107.14x8 =857 per 8 hours.