Which of the statements given below are correct? 1. The author of 'My Country My Life' is L.K Advani. 2. 'Wings of Fire' is an Autobiography of Subhash Chandra. 3. The author of 'The Great Indian Novel' is Shashi Tharoor.
A solid cone of height 36 cm and radius of base 9 cm is melted to form a solid cylinder of radius 9 cm and height 9 cm. What percent of material is wasted this process?