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'.

Input: Consider Input: 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

Output: d


Input: Consider Input: Problem: the value of a machine depreciates at 20 % per annum . if its present value is rs . 1 , 50,000 , at what price should it be sold after two years such that a profit of rs . 30,000 is made ? 
Options: a ) 328897 , b ) 120000 , c ) 877888 , d ) 277768 , e ) 126000

Output: e


Input: Consider Input: Problem: a person ' s salary is getting reduced by 20 % . what percentage should be added to get back his original salary ? 
Options: a ) 25 % , b ) 50 % , c ) 75 % , d ) 85 % , e ) 95 %


Output: a