Please help me with all subquestions.

5. Suppose there are two types of workers. Unable workers have a productivity of $1,000 per month and able workers have a productivity of $4,000 per month. Finns cannot tell the difference between them and obtaining this information is too costly. Able workers, however, have more patience than unable workers. Listening to an hour of lectures is as bad as losing $150 for an unable worker and $50 for an able worker. Under what condition will there be a separating equilibrium where anybody who attends a course of H hours of lectures is paid $4,000 per month and anybody who does not is paid $1,000 per rnonth: a. if 20