The distance between City E and City F was 820 km apart. A convertible travelled at an average speed of 84 km/h from City E to City F. At the same time, a bus travelled at an average speed of 80 km/h from City F to City E. 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
= 84 + 80
= 164 km/h
Time taken for the convertible and the bus to meet
= 820 ÷ 164
= 5 h
Difference in the speed between the convertible and the bus
= 84 - 80
= 4 km/h
Distance that the convertible travelled further than the bus
= 5 x 4
= 20 km
Answer(s): 20 km