Andrew ran 3.1 miles in 14 minutes and 35 seconds.
He assumes he can run 8 miles at the same speed.
Verify that it would take Andrew 37 minutes and 38 seconds to run 8 miles, giving the time to the nearest second.
Andrew's speed actually decreases the further he goes.
How does this affect your answer to part (a)?
203 exam-style questions on Eduqas GCSE Maths Speed and Density. Each one has a worked solution and a mark scheme showing where the marks go.