1. A local farm owner has just acquired another smaller farm with three silos for cattle feed. The shapes of the silos are right circular cylinders. Suppose one silo is 40 ft tall with a twelve foot diameter; another silo is 50ft tall with a 14ft diameter; and the third silo is 60ft tall with an 18ft diameter.
a. What is the combined capacity in cubic feet of all three silos?
b. If 1 quart of paint covers 100 sq feet, how many quarts of paint will the farmer need to paint the three silos and restore an appearance of newness?