which book for maths is the best for easy understanding and a which has a very good approach ,for IIT JEE?

Mathematices books for IIT-JEE by Arihant Publication are the best as they are written by two good writers like Amit M Agarwal & S.K Goyal.

Trust me they are really useful.

All the Best................

In my opinion if u r in 11th class then M.L. Khanna (subjective) would be best for u.....and if u r appearing for iit jee this year then you should solve arihant 32 years.......

hope u will find the answer useful

thank u