Task: Question Answering
Input (English): Problem: a rectangle having length 140 cm and width 40 cm . if the length of the rectangle is increased by thirty percent then how much percent the breadth should be decreased so as to maintain the same area . 
Options: a ) 17.64 % , b ) 33.33 % , c ) 40 % , d ) 75 % , e ) none of these
Output (English): a