These are the solutions (with explanations) to the Intermediate Maths challenge for 2012.
Often referred to as UKMT Intermediate Maths Challenge, this is a 60 minute paper sat in hundreds of schools around the UK, where students attempt to answer up to 25 questions. The questions test the students problem solving skills and the highest scoring students get awarded Gold certificates and may be selected to progress through to the next round. Silver and bronze certificates are also awarded if students score high enough.
