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: if a book is sold at 10 % profit instead of 10 % loss , it would have brought rs 14 more . find out the cost price of the book 
Options: a ) 75 , b ) 72 , c ) 60 , d ) 70 , e ) 80
[EX A]: d

[EX Q]: Problem: jill invests $ 10000 in an account that pays an annual rate of 3.96 % , compounding semi - annually . approximately how much q does she have in her account after two years ? 
Options: a ) $ 10079.44 , b ) q = $ 10815.83 , c ) $ 12652.61 , d ) $ 14232.14 , e ) $ 20598.11
[EX A]: b

[EX Q]: Problem: what is the rate percent when the simple interest on rs . 800 amount to rs . 160 in 3 years ? 
Options: a ) 5 % , b ) 6.6 % , c ) 9 % , d ) 2 % , e ) 4 %
[EX A]:
b