The key answer of exercise 6

Pupils who have been enrolled for exams at a Nottingham school will be fed a diet of bananas and classical music. Teachers at Kensal Green Girls' School hope their students' brain power will be increased by the special regime. When she was interviewed on local television, head teacher Sarah Weaver said, 'Every girl will be given a banana on exam mornings to help them get their brains into gear.' Soothing classical music - which is played at low volume through concealed speakers - is believed to calm candidates' nerves and put them in a relaxed frame of mind as they enter the examination hall. The experiment - which is based on similar techniques used in US universities - is likely to be imitated in other Nottingham schools if it is found to be successful.