How to tackle a STEP question - Open Day 2021

Mathematics Open Day 2021 at the University of Cambridge - In this webinar Claire Metcalfe, who runs the STEP Support Programme (maths.org/step), explains how to tackle STEP questions, using as an example Q7 from STEP 2 in 2007. She also gives a brief introduction to STEP in general, but if you wish to know more about that you should watch the video "STEP exams explained" from the previous Open Day in 2020.
She is joined by three current undergraduates, Xander, Izaak and Sae, who help answering questions from the audience during the Q&A session at the end.