The distance between City A and City B was 660 km apart. A van travelled at an average speed of 90 km/h from City A to City B. At the same time, a bus travelled at an average speed of 75 km/h from City B to City A. How much further did the van travel than the bus when the van met the bus on the way?
Combined speed of the van and the bus
= 90 + 75
= 165 km/h
Time taken for the van and the bus to meet
= 660 ÷ 165
= 4 h
Difference in the speed between the van and the bus
= 90 - 75
= 15 km/h
Distance that the van travelled further than the bus
= 4 x 15
= 60 km
Answer(s): 60 km