The distance between City P and City Q was 840 km apart. A van travelled at an average speed of 93 km/h from City P to City Q. At the same time, a bus travelled at an average speed of 75 km/h from City Q to City P. 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
= 93 + 75
= 168 km/h
Time taken for the van and the bus to meet
= 840 ÷ 168
= 5 h
Difference in the speed between the van and the bus
= 93 - 75
= 18 km/h
Distance that the van travelled further than the bus
= 5 x 18
= 90 km
Answer(s): 90 km