Question
Opal was travelling from Point R to Point S at a constant speed of 90 km/h. After 3 hours, she passed a convertible coming from the opposite direction. Opal travelled another 180 km to reach Point S. At this point, the convertible was still 58 km from Point R. What is the average speed of the convertible?
3 m

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Opal was travelling from Point R to Point S at a constant speed of 90 km/h. After 3 hours, she passed a convertible coming from the opposite direction. Opal travelled another 180 km to reach Point S. At this point, the convertible was still 58 km from Point R. What is the average speed of the convertible?