In this task, you need to answer the given multiple-choice question on geometry. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

Problem: if the length of the sides of two cubes are in the ratio 6 : 1 , what is the ratio of their total surface area ? 
Options: a ) 6 : 1 , b ) 12 : 1 , c ) 24 : 1 , d ) 36 : 1 , e ) 72 : 1
d

Problem: the side of a square is increased by 20 % then how much % does its area increases ? 
Options: a ) 44.00 % , b ) 45.25 % , c ) 48.75 % , d ) 50.00 % , e ) 40.00 %
a

Problem: the length of a rectangle is halved , whileits breadth is tripled . wat is the % change in area ? 
Options: a ) 40 % , b ) 45 % , c ) 50 % , d ) 65 % , e ) 70 %

c