Question 14
A man cycles to the park and back home, then walks to a coffee shop to buy a drink and walks home again. His distance from home is shown in the graph. How far is the park from his house if the average speed over the whole trip is 12.6 km/h?

Editorial convention: each outward and return leg follows a direct route, so distance travelled equals the corresponding change in distance from home. Equal vertical grid intervals represent equal distances. The whole elapsed time includes the stop.

Editorial convention: each outward and return leg follows a direct route, so distance travelled equals the corresponding change in distance from home. Equal vertical grid intervals represent equal distances. The whole elapsed time includes the stop.