Question
Sabrina was travelling from Point U to Point V at a constant speed of 80 km/h. After 4 hours, she passed a van coming from the opposite direction. Sabrina travelled another 240 km to reach Point V. At this point, the van was still 59 km from Point U. What is the average speed of the van?
3 m

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Sabrina was travelling from Point U to Point V at a constant speed of 80 km/h. After 4 hours, she passed a van coming from the opposite direction. Sabrina travelled another 240 km to reach Point V. At this point, the van was still 59 km from Point U. What is the average speed of the van?