9). Three process units are in the factory. Each unit has a FAR of 0.5, 0.3, and 1.0.

What is the overall FAR for the plant, assuming workers are exposed to all three units simultaneously?

10). Assume now (problem 9) that the units are far enough apart that an accident in one will not affect workers in the other. If a worker spends 20% of his time in process area 1, 40% in process area 2, and 40% in process area 3, what is his overall FAR?