In this task, you need to answer the given multiple-choice question on the gain. Gain is the value by which to multiply the input. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

[EX Q]: Problem: if the difference between the compound interest & simple interest of a certain sum of money is rs . 72 at 12 % p . a . per two year . find the sum ( in rs . ) ? 
Options: a ) 200 / 15 , b ) 200 / 17 , c ) 220 / 17 , d ) 240 / 17 , e ) 260 / 17
[EX A]: b

[EX Q]: Problem: raman ' s salary was decreased by 50 % and subsequently increased by 50 % . how much percent does he loss . 
Options: a ) 75 , b ) 65 , c ) 45 , d ) 25 , e ) 85
[EX A]: d

[EX Q]: Problem: j is 25 % less than p and 20 % less than t . t is w % less than p . what is the value of w ? 
Options: a ) 93.5 , b ) 90 , c ) 6.75 , d ) 6.25 , e ) 2
[EX A]:
d