The document provides analysis of average marks scored in important topics for the JEE Advanced exam from 2009-2012. For mathematics, topics like complex numbers, theory of equations, sequences and series, permutations and combinations, matrices and determinants, and functions saw average marks between 8-11. For chemistry, general organic chemistry, stoichiometry, chemical equilibrium, and d-block and complexes saw average marks between 8-15. The document compares average marks scored over multiple years to identify high scoring topics for the JEE Advanced exam.