Question
Tina was travelling from Point M to Point N at a constant speed of 85 km/h. After 2 hours, she passed a convertible coming from the opposite direction. Tina travelled another 85 km to reach Point N. At this point, the convertible was still 51 km from Point M. What is the average speed of the convertible?
3 m

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Tina was travelling from Point M to Point N at a constant speed of 85 km/h. After 2 hours, she passed a convertible coming from the opposite direction. Tina travelled another 85 km to reach Point N. At this point, the convertible was still 51 km from Point M. What is the average speed of the convertible?