Question
Penelope was travelling from Point J to Point K at a constant speed of 60 km/h. After 5 hours, she passed a lorry coming from the opposite direction. Penelope travelled another 120 km to reach Point K. At this point, the lorry was still 36 km from Point J. What is the average speed of the lorry?
3 m

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Penelope was travelling from Point J to Point K at a constant speed of 60 km/h. After 5 hours, she passed a lorry coming from the opposite direction. Penelope travelled another 120 km to reach Point K. At this point, the lorry was still 36 km from Point J. What is the average speed of the lorry?