The distance between City D and City E was 840 km apart. A convertible travelled at an average speed of 86 km/h from City D to City E. At the same time, a bus travelled at an average speed of 82 km/h from City E to City D. How much further did the convertible travel than the bus when the convertible met the bus on the way?
Combined speed of the convertible and the bus
= 86 + 82
= 168 km/h
Time taken for the convertible and the bus to meet
= 840 ÷ 168
= 5 h
Difference in the speed between the convertible and the bus
= 86 - 82
= 4 km/h
Distance that the convertible travelled further than the bus
= 5 x 4
= 20 km
Answer(s): 20 km