Candidates those appearing for IIT JEE 2011 are eager to know the details of ranks and marks of previous year or IIT JEE 2010 as they will be useful for assessing themselves. Based on the previous merit list of IIT JEE 2010, aspirants of IIT JEE 2011 will know the chances of getting an Engineering seat in any of the IITs. Subject wise common merit list for Chemistry, Mathematics and Physics of IIT JEE 2010 are given below in the image format. Candidate who secured First Rank in IIT JEE 2010 got 85.5 percent of marks in aggregate. He got 132, 133, 153 marks in Chemistry, Maths and Physics respectively.
Based on the previous year merit list, you can assume that a difference of about 15 percent marks between you and top rank holder will land you at near to 100 rank in IIT JEE. As the percent of marks decreasing, chances of getting good rank will also be decreased. You an click on the below image for these statistics of IIT JEE 2010.