Question
Harper started travelling at 8 a.m. at a speed of 62 km/h towards a town. Jack started travelling towards the town from the same place 3 hours later. When Harper reached the town at 5 p.m., Jack had another 180 km to travel. What was Jack's average speed?
3 m

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Harper started travelling at 8 a.m. at a speed of 62 km/h towards a town. Jack started travelling towards the town from the same place 3 hours later. When Harper reached the town at 5 p.m., Jack had another 180 km to travel. What was Jack's average speed?