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: there is 60 lit of milk and water in which milk forms 84 % . howmuch water must be added to this solution to make it solution in which milk forms 64 % 
Options: a ) 18.75 , b ) 19.75 , c ) 20.75 , d ) 21.75 , e ) 22.75
[EX A]: a

[EX Q]: Problem: the cost price of a radio is rs . 1500 and it was sold for rs . 1110 , find the loss % ? 
Options: a ) 18 , b ) 16 , c ) 26 , d ) 17 , e ) 11
[EX A]: c

[EX Q]: Problem: the population of a town is 10000 . it increases annually at the rate of 40 % p . a . what will be its population after 2 years ? 
Options: a ) 14000 , b ) 14400 , c ) 19600 , d ) 14600 , e ) 14700
[EX A]:
c