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: of 600 surveyed students , 20 % of those who read book a also read book b and 25 % of those who read book b also read book a . if each student read at least one of the books , what is the difference between the number of students who read only book a and the number of students who read only book b ? 
Options: a ) 20 , b ) 25 , c ) 30 , d ) 35 , e ) 75
answer:
e


question:
Problem: a person buys an article at rs . 500 . at what price should he sell the article so as to make a profit of 35 % ? 
Options: a ) 600 , b ) 887 , c ) 256 , d ) 654 , e ) 675
answer:
e


question:
Problem: a sum of money amounts to rs . 9800 after 5 years and rs . 12005 after 8 years at the same rate of simple interest . the rate of interest per annum is : 
Options: a ) 22 , b ) 88 , c ) 12 , d ) 73 , e ) 29
answer:

c