A four zone city has the following productions and attractions: Zone Production Attraction 1000 3000 2000 3000 3000 2900 4000 2400 The travel time matrix is the following: Travel Time (minutes) Zone 1 2 3 4 5 23 11 7 A 8 12 23 4 15 11 12 15 5 Travel Time (minutes) Fij 3.0 2.5 2.3 8 1.5 11 1.2 12 1.0 15 0.95 23 0.90 Apply the gravity model to distribute the trips among the four zones, assuming that Ki = 1.0