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'.

[Q]: Problem: what is the value of â ˆ š 25 % ? 
Options: a ) 10 % , b ) 50 % , c ) 25 % , d ) 45 % , e ) 68 %
[A]: b


[Q]: Problem: a sum fetched a total simple interest of $ 4061.25 at the rate of 9 p . c . p . a . in 5 years . what is the sum ? 
Options: a ) $ 8829 , b ) $ 2840 , c ) $ 6578 , d ) $ 7782 , e ) $ 8926
[A]: e


[Q]: Problem: a sum was put at simple interest at a certain rate for 3 years had it been put at 3 % higher rate , it would have fetched 81 more . find the sum . 
Options: a ) 500 , b ) 600 , c ) 700 , d ) 800 , e ) 900
[A]:
e