The distance between City T and City U was 720 km apart. A convertible travelled at an average speed of 97 km/h from City T to City U. At the same time, a lorry travelled at an average speed of 83 km/h from City U to City T. How much further did the convertible travel than the lorry when the convertible met the lorry on the way?
Combined speed of the convertible and the lorry
= 97 + 83
= 180 km/h
Time taken for the convertible and the lorry to meet
= 720 ÷ 180
= 4 h
Difference in the speed between the convertible and the lorry
= 97 - 83
= 14 km/h
Distance that the convertible travelled further than the lorry
= 4 x 14
= 56 km
Answer(s): 56 km