Question
Natalie was travelling from Point Z to Point A at a constant speed of 90 km/h. After 4 hours, she passed a bus coming from the opposite direction. Natalie travelled another 450 km to reach Point A. At this point, the bus was still 45 km from Point Z. What is the average speed of the bus?
3 m

Click button first when a symbol is required. X

Natalie was travelling from Point Z to Point A at a constant speed of 90 km/h. After 4 hours, she passed a bus coming from the opposite direction. Natalie travelled another 450 km to reach Point A. At this point, the bus was still 45 km from Point Z. What is the average speed of the bus?