A corporation has four construction projects to complete and four workers with varying degrees of expertise in construction for particular industries. Estimates of processing times (in hours) for each project by each worker are shown below. Development time costs an average of $200 an hour. Assign each worker to a project so that cost is minimized

Initial Project 1 Project 2 Project 3 Project 4 Matrix Clark 5 10 6 8 Andy 4 6 10 7 Fince 10 9 10 10 Gerrard 9 5 5 9