Question
Jean was travelling from Point P to Point Q at a constant speed of 70 km/h. After 5 hours, she passed a bus coming from the opposite direction. Jean travelled another 350 km to reach Point Q. At this point, the bus was still 55 km from Point P. What is the average speed of the bus?
3 m

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Jean was travelling from Point P to Point Q at a constant speed of 70 km/h. After 5 hours, she passed a bus coming from the opposite direction. Jean travelled another 350 km to reach Point Q. At this point, the bus was still 55 km from Point P. What is the average speed of the bus?