The distance between City C and City D was 920 km apart. A lorry travelled at an average speed of 96 km/h from City C to City D. At the same time, a car travelled at an average speed of 88 km/h from City D to City C. 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
= 96 + 88
= 184 km/h
Time taken for the lorry and the car to meet
= 920 ÷ 184
= 5 h
Difference in the speed between the lorry and the car
= 96 - 88
= 8 km/h
Distance that the lorry travelled further than the car
= 5 x 8
= 40 km
Answer(s): 40 km