Question
Ellie started travelling at 8 a.m. at a speed of 72 km/h towards a town. Leah started travelling towards the town from the same place 4 hours later. When Ellie reached the town at 6 p.m., Leah had another 180 km to travel. What was Leah's average speed?
3 m

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Ellie started travelling at 8 a.m. at a speed of 72 km/h towards a town. Leah started travelling towards the town from the same place 4 hours later. When Ellie reached the town at 6 p.m., Leah had another 180 km to travel. What was Leah's average speed?