The distance between City S and City T was 820 km apart. A bus travelled at an average speed of 86 km/h from City S to City T. At the same time, a convertible travelled at an average speed of 78 km/h from City T to City S. 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
= 86 + 78
= 164 km/h
Time taken for the bus and the convertible to meet
= 820 ÷ 164
= 5 h
Difference in the speed between the bus and the convertible
= 86 - 78
= 8 km/h
Distance that the bus travelled further than the convertible
= 5 x 8
= 40 km
Answer(s): 40 km