ur question about compettion is not cllear atall.which type of compettion.are u preparing for IIT or BANK P.O or REASONING TYPE MATHS.U PLEASE CLEAR UR QUESTION THEN I WILL SUGGEST U THE REQUIRED BOOK FOR U.
this book about the preparation to math competition such us math olympiad and so o, i would love to get the links about it. thanx a lot for the information.