Question
Andrew started travelling at 11 a.m. at a speed of 78 km/h towards a town. Anthony started travelling towards the town from the same place 3 hours later. When Andrew reached the town at 5 p.m., Anthony had another 180 km to travel. What was Anthony's average speed?
3 m

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Andrew started travelling at 11 a.m. at a speed of 78 km/h towards a town. Anthony started travelling towards the town from the same place 3 hours later. When Andrew reached the town at 5 p.m., Anthony had another 180 km to travel. What was Anthony's average speed?