Read this: With 120,000 students in London, the federal University of London is the largest contact teaching university in the UK. It includes four large multi-faculty universities King's College London, Queen Mary, Royal Holloway and UCL and a number of smaller and more specialised institutions including Birkbeck, the Courtauld Institute of Art, Goldsmiths, Guildhall School of Music and Drama, the Institute of Education, the London Business School, the London School of Economics, the London School of Hygiene & Tropical Medicine, the Royal Academy of Music, the Central School of Speech and Drama, the Royal Veterinary College and the School of Oriental and African Studies. Members of the University of London have their own admissions procedures, and some award their own degrees.

What is the average student population at the University of London?
What is the answer? (If it cannot be answered, return "unanswerable")
120,000