Question
Xylia was travelling from Point U to Point V at a constant speed of 90 km/h. After 4 hours, she passed a van coming from the opposite direction. Xylia travelled another 450 km to reach Point V. At this point, the van was still 55 km from Point U. What is the average speed of the van?
3 m

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Xylia was travelling from Point U to Point V at a constant speed of 90 km/h. After 4 hours, she passed a van coming from the opposite direction. Xylia travelled another 450 km to reach Point V. At this point, the van was still 55 km from Point U. What is the average speed of the van?