The distance between City F and City G was 960 km apart. A lorry travelled at an average speed of 89 km/h from City F to City G. At the same time, a convertible travelled at an average speed of 71 km/h from City G to City F. How much further did the lorry travel than the convertible when the lorry met the convertible on the way?
Combined speed of the lorry and the convertible
= 89 + 71
= 160 km/h
Time taken for the lorry and the convertible to meet
= 960 ÷ 160
= 6 h
Difference in the speed between the lorry and the convertible
= 89 - 71
= 18 km/h
Distance that the lorry travelled further than the convertible
= 6 x 18
= 108 km
Answer(s): 108 km