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: an agent , gets a commission of 2.5 % on the sales of cloth . if on a certain day , he gets rs . 21 as commission , the cloth sold through him on that day is worth 
Options: a ) 333 , b ) 500 , c ) 840 , d ) 299 , e ) 132
answer:
c


question:
Problem: the calendar of the year 2060 can be used again in the year ? 
Options: a ) 2081 , b ) 2083 , c ) 2088 , d ) 1971 , e ) 1973
answer:
c


question:
Problem: two numbers are respectively 71 % and 80 % more than a third number . the percentage that is first of the second is ? 
Options: a ) 4 % , b ) 5 % , c ) 6 % , d ) 7 % , e ) 8 %
answer:

b