Question 17
The graph below shows Alice's distance from home. She first cycles from home to a park nearby. On the way home, she met her friend and they talked for some minutes. After that, they went to buy some food before reaching home. Given the average speed of Alice in the whole trip is 6.25 km/h. How long does Alice stop during the trip in total?
Editorial graph model: equally spaced vertical grid lines represent equal time intervals; movement is along the out-and-back route, and horizontal graph segments are stops.
Editorial graph model: equally spaced vertical grid lines represent equal time intervals; movement is along the out-and-back route, and horizontal graph segments are stops.