Question
Olivia started travelling at 6 a.m. at a speed of 85 km/h towards a town. Amelia started travelling towards the town from the same place 2 hours later. When Olivia reached the town at 6 p.m., Amelia had another 180 km to travel. What was Amelia's average speed?
3 m

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Olivia started travelling at 6 a.m. at a speed of 85 km/h towards a town. Amelia started travelling towards the town from the same place 2 hours later. When Olivia reached the town at 6 p.m., Amelia had another 180 km to travel. What was Amelia's average speed?