Discuss the below:
Q: A manager must decide between two machines. The manager will take into account each machine's operating costs and initial costs, and its breakdown and repair times. Machine A has a projected average operating time of 140 hours and a projected average repair time of 10 hours. Projected times for machine B are an average operating time of 55 hours and a repair time of 3 hours. What are the projected availabilities of each machine?