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: a , b and c invested rs . 6300 , rs . 4200 and rs . 10500 respectively , in a partnership business . find the share of a in profit of rs . 12600 after a year ? 
Options: a ) 3630 , b ) 3637 , c ) 3630 , d ) 3631 , e ) 3780

Output: e


Input: Consider Input: Problem: rs . 200 amounts to rs . 800 in 8 years at simple interest . if the interest is increased by 5 % , it would amount to how much ? 
Options: a ) 520 , b ) 440 , c ) 260 , d ) 280 , e ) 120

Output: d


Input: Consider Input: Problem: a sum of money amounts to rs . 9800 after 5 years and rs . 12005 after 8 years at the same rate of simple interest . the rate of interest per annum is 
Options: a ) 15 % , b ) 12 % , c ) 8 % , d ) 7 % , e ) 5 %


Output: b