Question
Nicole was travelling from Point J to Point K at a constant speed of 90 km/h. After 2 hours, she passed a lorry coming from the opposite direction. Nicole travelled another 90 km to reach Point K. At this point, the lorry was still 39 km from Point J. What is the average speed of the lorry?
3 m

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Nicole was travelling from Point J to Point K at a constant speed of 90 km/h. After 2 hours, she passed a lorry coming from the opposite direction. Nicole travelled another 90 km to reach Point K. At this point, the lorry was still 39 km from Point J. What is the average speed of the lorry?