Liam cycled to the library. He stayed at the library and then he cycled back home.
Here is Liam's travel graph.
| Time | Distance from home (km) |
|---|---|
| 09 00 | 0 |
| 09 40 | 12 |
| 10 40 | 12 |
| 11 10 | 0 |
A travel graph showing distance from home (km) on the y-axis (0 to 15) against time on the x-axis (09 00 to 11 30). The graph consists of three straight line segments: from (09 00, 0) to (09 40, 12), from (09 40, 12) to (10 40, 12), and from (10 40, 12) to (11 10, 0). The y-axis has major grid lines every 5 units and minor grid lines every 1 unit. The x-axis has major grid lines every 30 minutes and minor grid lines every 10 minutes.
For how many minutes did Liam stay at the library?
What was Liam's average speed on his journey to the library?
17 exam-style questions on Edexcel GCSE Maths Real Life and Distance Time Graphs. Each one has a worked solution and a mark scheme showing where the marks go.