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: at what rate percent per annum will the simple interest on a sum of money be 1 / 5 of the amount in 10 years ? 
Options: a ) 2 % , b ) 7 % , c ) 9 % , d ) 3 % , e ) 1 %
answer:
a


question:
Problem: double of quarter of 5 percent written as a decimal is : 
Options: a ) 0.003 , b ) 0.0005 , c ) 0.025 , d ) 0.005 , e ) none of these
answer:
c


question:
Problem: a shop owner sells 60 mtr of cloth and gains sp of 10 mtrs . find the gain % ? 
Options: a ) 20 % , b ) 40 % , c ) 50 % , d ) 60 % , e ) 70 %
answer:

a