Question
Barbara was travelling from Point X to Point Y at a constant speed of 60 km/h. After 4 hours, she passed a convertible coming from the opposite direction. Barbara travelled another 180 km to reach Point Y. At this point, the convertible was still 48 km from Point X. What is the average speed of the convertible?
3 m

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Barbara was travelling from Point X to Point Y at a constant speed of 60 km/h. After 4 hours, she passed a convertible coming from the opposite direction. Barbara travelled another 180 km to reach Point Y. At this point, the convertible was still 48 km from Point X. What is the average speed of the convertible?