Question
Opal was travelling from Point W to Point X at a constant speed of 85 km/h. After 4 hours, she passed a car coming from the opposite direction. Opal travelled another 425 km to reach Point X. At this point, the car was still 45 km from Point W. What is the average speed of the car?
3 m

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Opal was travelling from Point W to Point X at a constant speed of 85 km/h. After 4 hours, she passed a car coming from the opposite direction. Opal travelled another 425 km to reach Point X. At this point, the car was still 45 km from Point W. What is the average speed of the car?