The distance between City G and City H was 640 km apart. A convertible travelled at an average speed of 85 km/h from City G to City H. At the same time, a bus travelled at an average speed of 75 km/h from City H to City G. 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
= 85 + 75
= 160 km/h
Time taken for the convertible and the bus to meet
= 640 ÷ 160
= 4 h
Difference in the speed between the convertible and the bus
= 85 - 75
= 10 km/h
Distance that the convertible travelled further than the bus
= 4 x 10
= 40 km
Answer(s): 40 km