Question
Sabrina was travelling from Point Z to Point A at a constant speed of 90 km/h. After 3 hours, she passed a lorry coming from the opposite direction. Sabrina travelled another 180 km to reach Point A. At this point, the lorry was still 36 km from Point Z. What is the average speed of the lorry?
3 m

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Sabrina was travelling from Point Z to Point A at a constant speed of 90 km/h. After 3 hours, she passed a lorry coming from the opposite direction. Sabrina travelled another 180 km to reach Point A. At this point, the lorry was still 36 km from Point Z. What is the average speed of the lorry?