The distance between City Q and City R was 640 km apart. A convertible travelled at an average speed of 84 km/h from City Q to City R. At the same time, a bus travelled at an average speed of 76 km/h from City R to City Q. 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 + 76
= 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
= 84 - 76
= 8 km/h
Distance that the convertible travelled further than the bus
= 4 x 8
= 32 km
Answer(s): 32 km