Question
Aubrey started travelling at 10 a.m. at a speed of 60 km/h towards a town. Elijah started travelling towards the town from the same place 4 hours later. When Aubrey reached the town at 6 p.m., Elijah had another 180 km to travel. What was Elijah's average speed?
3 m

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Aubrey started travelling at 10 a.m. at a speed of 60 km/h towards a town. Elijah started travelling towards the town from the same place 4 hours later. When Aubrey reached the town at 6 p.m., Elijah had another 180 km to travel. What was Elijah's average speed?