Q6. Indian Railways wants to assign drivers to the following train services between Kanpur and New Delhi. A trip between these two cities takes 5 hours. A driver's workday (24 hours) consists of two trips: one from Kanpur to New Delhi and one from New Delhi to Kanpur. Union law requires that a driver rest for four or more hours between trips. i. Formulate a balanced assignment problem for Indian Railways to assign drivers to trips while minimizing the total downtime for all the drivers. (10 marks) ii. Solve the problem and report the driver assignment