Precision Testing does blood testing for several local hospitals. There are two kinds of blood tests, a basic test and a complete test. Basic tests require 15 seconds per sample, whereas complete tests require 2 minutes per sample. After 100 tests (either basic, or complete, or both together), the equipment needs to be cleaned and recalibrated, which takes 20 minutes. Suppose Precision Testing run the following cyclic schedule: 80 basic tests, 20 complete tests, recalibrate, and then repeat. What is the capacity (tests/hour) of this blood testing schedule?