1. Branton Electric is considering the purchase of an entire cargo container filled with upgraded utility meters for $15,000. Branton can charge $50 for the installation of each upgraded meter, while the actual cost of the installation would be only $5. How many utility meter upgrades are necessary for Branton Electric to break even on this purchase?
2. The Kitti Kreme Donut production facility consists of three identical donut fry vats, each of which operated at 75% efficiency last month. If this facility produced a total of 150,000 donuts last week, what is the apparent effective capacity of one of Kitti Kreme’s donut fry vats?
3. Cars arrive on average 10 minutes apart at a single toll booth with a Poisson arrival rate and an exponential service time averaging 1 minute. How often is this toll booth idle?