The distance between City J and City K was 700 km apart. A convertible travelled at an average speed of 92 km/h from City J to City K. At the same time, a lorry travelled at an average speed of 83 km/h from City K to City J. 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
= 92 + 83
= 175 km/h
Time taken for the convertible and the lorry to meet
= 700 ÷ 175
= 4 h
Difference in the speed between the convertible and the lorry
= 92 - 83
= 9 km/h
Distance that the convertible travelled further than the lorry
= 4 x 9
= 36 km
Answer(s): 36 km