The distance between City W and City X was 720 km apart. A van travelled at an average speed of 99 km/h from City W to City X. At the same time, a convertible travelled at an average speed of 81 km/h from City X to City W. How much further did the van travel than the convertible when the van met the convertible on the way?
Combined speed of the van and the convertible
= 99 + 81
= 180 km/h
Time taken for the van and the convertible to meet
= 720 ÷ 180
= 4 h
Difference in the speed between the van and the convertible
= 99 - 81
= 18 km/h
Distance that the van travelled further than the convertible
= 4 x 18
= 72 km
Answer(s): 72 km