Question
Layla started travelling at 10 a.m. at a speed of 78 km/h towards a town. Ryan started travelling towards the town from the same place 3 hours later. When Layla reached the town at 7 p.m., Ryan had another 180 km to travel. What was Ryan's average speed?
3 m

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Layla started travelling at 10 a.m. at a speed of 78 km/h towards a town. Ryan started travelling towards the town from the same place 3 hours later. When Layla reached the town at 7 p.m., Ryan had another 180 km to travel. What was Ryan's average speed?