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'.

[Q]: Problem: find the simple interest on rs . 350 for 10 months at 5 paisa per month ? 
Options: a ) 277 , b ) 175 , c ) 288 , d ) 266 , e ) 121
[A]: b


[Q]: Problem: from january 1 , 1991 , to january 1 , 1993 , the number of people enrolled in health maintenance organizations increased by 20 percent . the enrollment on january 1 , 1993 , was 50 million . how many million people , to the nearest million , were enrolled in health maintenance organizations on january 1 , 1991 ? 
Options: a ) 38 , b ) 39 , c ) 40 , d ) 41 , e ) 42
[A]: e


[Q]: Problem: there are 1000 students in a school and among them 10 % of them attends chess class . 10 % of the students who are in the chess class are also enrolled for swimming . no other students are interested in swimming so how many will attend the swimming class if all enrolled attends ? 
Options: a ) 1 , b ) 10 , c ) 100 , d ) 50 , e ) 20
[A]:
b