admin Judith drives from Sydney to Newcastle, a distance of 160km in 3 hours, then from Newcastle to Port Macquarie, a distance of 90km in 2 hours. What is her average speed for the whole trip? A: 50km/hr B: 60km/hr C: 56km/hr D: 72km/hr
BB23 Total Distance = 160 + 90 = 250 km Total Time = 4 + 2 + 6 hours Average Speed = Total distance / Total Time = 250/6 = 41.67 km/hr
