The distance between City T and City U was 870 km apart. A car travelled at an average speed of 100 km/h from City T to City U. At the same time, a lorry travelled at an average speed of 74 km/h from City U to City T. How much further did the car travel than the lorry when the car met the lorry on the way?
Combined speed of the car and the lorry
= 100 + 74
= 174 km/h
Time taken for the car and the lorry to meet
= 870 ÷ 174
= 5 h
Difference in the speed between the car and the lorry
= 100 - 74
= 26 km/h
Distance that the car travelled further than the lorry
= 5 x 26
= 130 km
Answer(s): 130 km