Question: Where does the employer of Hasan Hanafi rank according to QS World University Rankings?

Knowledge 1: Hassan Hanafi
Hassan Hanafi (حسن حنفی) (born 1935 in Cairo, Egypt) is a professor and chairs the philosophy department at Cairo University. He is a leading authority on modern Islam. [SEP] Knowledge 2: Egypt
Cairo University is ranked as 401-500 according to the Academic Ranking of World Universities (Shanghai Ranking) and 551-600 according to QS World University Rankings. American University in Cairo is ranked as 360 according to QS World University Rankings and Al-Azhar University, Alexandria University and Ain Shams University fall in the 701+ range. Egypt is currently opening new research institutes for the aim of modernising research in the nation, the most recent example of which is Zewail City of Science and Technology.
Knowledge 1: Switzerland
Switzerland has a stable, prosperous and high-tech economy and enjoys great wealth, being ranked as the wealthiest country in the world per capita in multiple rankings. In 2011 it was ranked as the wealthiest country in the world in per capita terms (with "wealth" being defined to include both financial and non-financial assets), while the 2013 Credit Suisse Global Wealth Report showed that Switzerland was the country with the highest average wealth per adult in 2013. It has the world's nineteenth largest economy by nominal GDP and the thirty-sixth largest by purchasing power parity. It is the twentieth largest exporter, despite its small size. Switzerland has the highest European rating in the Index of Economic Freedom 2010, while also providing large coverage through public services. The nominal per capita GDP is higher than those of the larger Western and Central European economies and Japan. If adjusted for purchasing power parity, Switzerland ranks 8th in the world in terms of GDP per capita, according to the World Bank and IMF (ranked 15th according to the CIA Worldfactbook). [SEP] Knowledge 2: Switzerland
Switzerland is one of the richest and wealthiest countries in the world. Switzerland ranks top or close to the top in several metrics of national performance, including government transparency, civil liberties, quality of life, economic competitiveness, and human development. It has the highest nominal wealth (financial and non-financial assets) per adult in the world according to Credit Suisse and the eighth-highest per capita gross domestic product on the IMF list. Zürich and Geneva have each been ranked among the top cities with the highest quality of life in the world, with the former ranked 2nd globally, according to Mercer.
Knowledge 1: Hassan Hanafi
Hassan Hanafi (حسن حنفی) (born 1935 in Cairo, Egypt) is a professor and chairs the philosophy department at Cairo University. He is a leading authority on modern Islam. [SEP] Knowledge 2: London
A number of world-leading education institutions are based in London. In the 2014/15 QS World University Rankings, Imperial College London is ranked joint 2nd in the world (alongside The University of Cambridge), University College London (UCL) is ranked 5th, and King's College London (KCL) is ranked 16th. The London School of Economics has been described as the world's leading social science institution for both teaching and research. The London Business School is considered one of the world's leading business schools and in 2015 its MBA programme was ranked second best in the world by the Financial Times.

Answer: 551-600