Webster Training Service (WTS) provides instruction on the use of computer software for the employess of its corporate clients. It offers courses In the client's offices on the client's equipment.The only major expense WTS incurs is instructor salaries: it pays instructors 5000 per course taught. WTS recently agreed to offer a course of instruction to the employees of Chambers Incorporated at a price of $400 per student. Chambers estimated that 20 students would attend the course. Queston: Determine the profit ,assuming that 20 students take the course