Question
Kylie was travelling from Point L to Point M at a constant speed of 75 km/h. After 5 hours, she passed a lorry coming from the opposite direction. Kylie travelled another 450 km to reach Point M. At this point, the lorry was still 39 km from Point L. What is the average speed of the lorry?
3 m

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Kylie was travelling from Point L to Point M at a constant speed of 75 km/h. After 5 hours, she passed a lorry coming from the opposite direction. Kylie travelled another 450 km to reach Point M. At this point, the lorry was still 39 km from Point L. What is the average speed of the lorry?