Question
Fanny was travelling from Point J to Point K at a constant speed of 70 km/h. After 5 hours, she passed a convertible coming from the opposite direction. Fanny travelled another 420 km to reach Point K. At this point, the convertible was still 50 km from Point J. What is the average speed of the convertible?
3 m

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Fanny was travelling from Point J to Point K at a constant speed of 70 km/h. After 5 hours, she passed a convertible coming from the opposite direction. Fanny travelled another 420 km to reach Point K. At this point, the convertible was still 50 km from Point J. What is the average speed of the convertible?