The distance between City M and City N was 660 km apart. A sports car travelled at an average speed of 92 km/h from City M to City N. At the same time, a lorry travelled at an average speed of 73 km/h from City N to City M. How much further did the sports car travel than the lorry when the sports car met the lorry on the way?
Combined speed of the sports car and the lorry
= 92 + 73
= 165 km/h
Time taken for the sports car and the lorry to meet
= 660 ÷ 165
= 4 h
Difference in the speed between the sports car and the lorry
= 92 - 73
= 19 km/h
Distance that the sports car travelled further than the lorry
= 4 x 19
= 76 km
Answer(s): 76 km