Question
Isabella started travelling at 11 a.m. at a speed of 74 km/h towards a town. Ethan started travelling towards the town from the same place 3 hours later. When Isabella reached the town at 4 p.m., Ethan had another 180 km to travel. What was Ethan's average speed?
3 m

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Isabella started travelling at 11 a.m. at a speed of 74 km/h towards a town. Ethan started travelling towards the town from the same place 3 hours later. When Isabella reached the town at 4 p.m., Ethan had another 180 km to travel. What was Ethan's average speed?