Beatrice cycled 5.4 km in 13 minutes and 40 seconds.
She assumes she can cycle 20 km at the same speed.
Work out how long it would take Beatrice to cycle 20 km.
Give your answer in minutes and seconds to the nearest second.
Beatrice's speed actually decreases the further she goes.
How does this affect your answer to part (a)?
Practise Edexcel GCSE Maths Speed and Density with exam-style questions for Foundation and Higher tier. 52 questions, matched to the Edexcel GCSE Maths (1MA1) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.