The distance between City Q and City R was 660 km apart. A convertible travelled at an average speed of 91 km/h from City Q to City R. At the same time, a car travelled at an average speed of 74 km/h from City R to City Q. How much further did the convertible travel than the car when the convertible met the car on the way?
Combined speed of the convertible and the car
= 91 + 74
= 165 km/h
Time taken for the convertible and the car to meet
= 660 ÷ 165
= 4 h
Difference in the speed between the convertible and the car
= 91 - 74
= 17 km/h
Distance that the convertible travelled further than the car
= 4 x 17
= 68 km
Answer(s): 68 km