The distance between City E and City F was 850 km apart. A convertible travelled at an average speed of 95 km/h from City E to City F. At the same time, a lorry travelled at an average speed of 75 km/h from City F to City E. 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
= 95 + 75
= 170 km/h
Time taken for the convertible and the lorry to meet
= 850 ÷ 170
= 5 h
Difference in the speed between the convertible and the lorry
= 95 - 75
= 20 km/h
Distance that the convertible travelled further than the lorry
= 5 x 20
= 100 km
Answer(s): 100 km