Question
Zoey started travelling at 11 a.m. at a speed of 60 km/h towards a town. Harris started travelling towards the town from the same place 5 hours later. When Zoey reached the town at 9 p.m., Harris had another 180 km to travel. What was Harris's average speed?
3 m

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Zoey started travelling at 11 a.m. at a speed of 60 km/h towards a town. Harris started travelling towards the town from the same place 5 hours later. When Zoey reached the town at 9 p.m., Harris had another 180 km to travel. What was Harris's average speed?