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: the population of a town is 10000 . it increases annually at the rate of 20 % p . a . what will be its population after 1 year ? 
Options: a ) 12300 , b ) 12350 , c ) 12000 , d ) 12500 , e ) 12600
[A]: c


[Q]: Problem: rs . 1500 is divided into two parts such that if one part is invested at 6 % and the other at 5 % the whole annual interest from both the sum is rs . 86 . how much was lent at 5 % ? 
Options: a ) 388 , b ) 2998 , c ) 277 , d ) 500 , e ) 400
[A]: e


[Q]: Problem: indu gave bindu rs . 5000 on compound interest for 2 years at 4 % per annum . how much loss would indu has suffered had she given it to bindu for 2 years at 4 % per annum simple interest ? 
Options: a ) 8 , b ) 2 , c ) 9 , d ) 5 , e ) 1
[A]:
a