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

[EX Q]: Problem: the length and breadth of a square are increased by 40 % and 30 % respectively . the area of the rectangle so formed exceeds the area of the square by ? 
Options: ['a ) 82 %', 'b ) 78 %', 'c ) 80 %', 'd ) 90 %', 'e ) none of these']
[EX A]: a

[EX Q]: Problem: a box measuring 49 inches long by 21 inches wide by 14 inches deep is to be filled entirely with identical cubes . no space is to be left unfilled . what is the smallest number of cubes that can accomplish this objective ? 
Options: a ) 17 , b ) 42 , c ) 54 , d ) 108 , e ) 864
[EX A]: b

[EX Q]: Problem: what is the perimeter , in meters , of a rectangular garden 24 meters wide that has the same area as a rectangular playground 16 meters long and 12 meters wide ? 
Options: a ) 48 , b ) 56 , c ) 64 , d ) 76 , e ) 192
[EX A]:
c