instruction:
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'.
question:
Problem: sheela deposits rs . 4500 in bank savings account . if this is 28 % of her monthly income . what is her monthly income in ? 
Options: a ) 22000 , b ) 27000 , c ) 16071 , d ) 16789 , e ) none of these
answer:
c


question:
Problem: find the annual income derived by investing $ 6800 in 30 % stock at 136 . 
Options: a ) 550 , b ) 1500 , c ) 250 , d ) 1300 , e ) 400
answer:
b


question:
Problem: if 15 % of 30 % of 50 % of a number is 108 , then what is the number ? 
Options: a ) 4000 , b ) 3050 , c ) 4400 , d ) 4800 , e ) none of these
answer:

d