Question
Caleb started travelling at 8 a.m. at a speed of 70 km/h towards a town. Aria started travelling towards the town from the same place 3 hours later. When Caleb reached the town at 4 p.m., Aria had another 180 km to travel. What was Aria's average speed?
3 m

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Caleb started travelling at 8 a.m. at a speed of 70 km/h towards a town. Aria started travelling towards the town from the same place 3 hours later. When Caleb reached the town at 4 p.m., Aria had another 180 km to travel. What was Aria's average speed?