The distance between City F and City G was 810 km apart. A van travelled at an average speed of 86 km/h from City F to City G. At the same time, a lorry travelled at an average speed of 76 km/h from City G to City F. How much further did the van travel than the lorry when the van met the lorry on the way?
Combined speed of the van and the lorry
= 86 + 76
= 162 km/h
Time taken for the van and the lorry to meet
= 810 ÷ 162
= 5 h
Difference in the speed between the van and the lorry
= 86 - 76
= 10 km/h
Distance that the van travelled further than the lorry
= 5 x 10
= 50 km
Answer(s): 50 km