The distance between City T and City U was 720 km apart. A lorry travelled at an average speed of 98 km/h from City T to City U. At the same time, a car travelled at an average speed of 82 km/h from City U to City T. How much further did the lorry travel than the car when the lorry met the car on the way?
Combined speed of the lorry and the car
= 98 + 82
= 180 km/h
Time taken for the lorry and the car to meet
= 720 ÷ 180
= 4 h
Difference in the speed between the lorry and the car
= 98 - 82
= 16 km/h
Distance that the lorry travelled further than the car
= 4 x 16
= 64 km
Answer(s): 64 km