Andrew ran 4.1 miles in 16 minutes and 17 seconds.
He assumes he can run 9 miles at the same speed.
Work out how long it would take Andrew to run 9 miles.
Give your answer in minutes and seconds 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 OCR GCSE Maths Speed and Density. Each one has a worked solution and a mark scheme showing where the marks go.