Question
Robert started travelling at 5 a.m. at a speed of 74 km/h towards a town. Aria started travelling towards the town from the same place 3 hours later. When Robert reached the town at 3 p.m., Aria had another 180 km to travel. What was Aria's average speed?
3 m

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Robert started travelling at 5 a.m. at a speed of 74 km/h towards a town. Aria started travelling towards the town from the same place 3 hours later. When Robert reached the town at 3 p.m., Aria had another 180 km to travel. What was Aria's average speed?