Problem: a cube of edge 10 cm is immersed completely in a rectangular vessel containing water . if the dimensions of the base of vessel are 20 cm * 15 cm , find the rise in water level ? 
Options: ['a ) 6 cm', 'b ) 8.25 cm', 'c ) 11.25 cm', 'd ) 15.12 cm', 'e ) 3.33 cm']
e