Question
Diana was travelling from Point R to Point S at a constant speed of 90 km/h. After 4 hours, she passed a sports car coming from the opposite direction. Diana travelled another 270 km to reach Point S. At this point, the sports car was still 60 km from Point R. What is the average speed of the sports car?
3 m

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Diana was travelling from Point R to Point S at a constant speed of 90 km/h. After 4 hours, she passed a sports car coming from the opposite direction. Diana travelled another 270 km to reach Point S. At this point, the sports car was still 60 km from Point R. What is the average speed of the sports car?