(a)[1]
Find the distance Lee has covered when he catches Kim.
(b)[1]
Find how much more time Kim needs to finish the course than Lee.
(c(i))[1]
On the diagram, draw Melvin’s distance-time graph.
(c(ii))[1]
Express Melvin’s speed in km/h.
Mathematics 4024 · O Level · Graphs in practical situations
Graphs in practical situations — practice question
Kim and Lee are running a 2000 metre cross-country route that begins at $P$ and finishes at $Q$. Lee sets off 1 minute after Kim. Their distance-time graphs are shown in the diagram.