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Consider the problem of assigning aircraft to four routes according to the following data: Number of daily trips on route Aircraft Capacity Number type (passengers) . 0f 1 2 3 4 aircraft 1 50 5 3 2 2 1 2 30 8 4 3 3 2 3 20 10 5 5 4 2 Daily number of costumers 1000 2000 900 1200 The associated costs, including penalties for losing customers because of space unavailability are: Operating cost (5) per trip on route Aircraft type 1 2 3 4 1 1000 1100 1200 1500 2 800 800 1000 1000 3 500 600 800 900 Penalty (5) per lost customer 40 40 45 70 Determine the optimum allocation of aircraft to routes, and determine the associated number of trips