The distance between City E and City F was 720 km apart. A bus travelled at an average speed of 100 km/h from City E to City F. At the same time, a convertible travelled at an average speed of 80 km/h from City F to City E. How much further did the bus travel than the convertible when the bus met the convertible on the way?
Combined speed of the bus and the convertible
= 100 + 80
= 180 km/h
Time taken for the bus and the convertible to meet
= 720 ÷ 180
= 4 h
Difference in the speed between the bus and the convertible
= 100 - 80
= 20 km/h
Distance that the bus travelled further than the convertible
= 4 x 20
= 80 km
Answer(s): 80 km