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

[Q]: Problem: the dimensions of a room are 25 feet * 15 feet * 12 feet . what is the cost of white washing the four walls of the room at rs . 9 per square feet if there is one door of dimensions 6 feet * 3 feet and three windows of dimensions 4 feet * 3 feet each ? 
Options: a ) 4000 , b ) 345 , c ) 5673 , d ) 6530 , e ) 8154
[A]: e


[Q]: Problem: the volume of a certain substance is always directly proportional to its weight . if 48 cubic inches of the substance weigh 112 ounces , what is the volume , in cubic inches , of 56 ounces of this substance ? 
Options: a ) 27 , b ) 36 , c ) 42 , d ) 24 , e ) 147
[A]: d


[Q]: Problem: if the diameter of circle r is 40 % of the diameter of circle s , the area of circle r is what percent of the area of circle s ? 
Options: a ) 16 % , b ) 18 % , c ) 20 % , d ) 22 % , e ) 24 %
[A]:
a