3. Five workers are available to perform five jobs. The weight for each worker to perform each job is given in Table. The goal is to assign workers to jobs so as to maximize the total weight required to perform the five jobs. Jobl Job2 Job3 Job4 Job5 Workerl -10 -15 -10 -15 -10 Worker2 -12 -8 -20 -16 -14 Worker3 -10 -9 -12 -18 -12 Worker4 -6 -12 -15 -16 -10 Workers -16 -12 -8 -12 -14 Answer these questions according to problem given above. a) Set up mathematical model. b) Solve this problem by using macar/hungarian method. c) Write gams code in close form and compare results with b. d) Explain the mainly differences between Assignment problem and Transportation problem