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: 150 is what percent of 60 ? 
Options: a ) 250 % , b ) 20 % , c ) 50 % , d ) 200 % , e ) 500 %
[EX A]: a

[EX Q]: Problem: the annual interest rate earned by an investment increased by 8 percent from last year to this year . if the annual interest rate earned by the investment this year was 27 percent , what was the annual interest rate last year ? 
Options: a ) 22 % , b ) 20 % , c ) 25 % , d ) 23 % , e ) 21 %
[EX A]: c

[EX Q]: Problem: in town x , 60 percent of the population are employed , and 48 percent of the population are employed males . what percent of the employed people in town x are females ? 
Options: a ) 16 % , b ) 20 % , c ) 31 % , d ) 40 % , e ) 52 %
[EX A]:
b