Ms. Mona Hull is in charge of a project to build a 50-foot yacht for a wealthy industrialist from Jasper, Indiana. The yacht is scheduled to compete in the famous Lake Lemon Cup Race. Eight weeks remain for constructing the yacht. Assume that each week consists of 5 workdays, for a total lead time of 40 days. The work required to complete the yacht comprises 10 operations, 4 days for each.

a. On Tuesday morning of week 3, 3 of the 10 operations had been completed and the yacht was waiting for the fourth operation. What's the critical ratio priority?

b. What's the critical ratio priority if only 2 of the 10 operations are completed by Tuesday morning of week 3?