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: how many pounds of salt at 50 cents / lb must be mixed with 40 lbs of salt that costs 25 cents / lb so that a merchant will get 20 % profit by selling the mixture at 48 cents / lb ? 
Options: a ) 20 , b ) 15 , c ) 40 , d ) 60 , e ) 25
[EX A]: d

[EX Q]: Problem: the sale price sarees listed for rs . 600 after successive discount is 20 % and 5 % is ? 
Options: a ) 227 , b ) 358 , c ) 456 , d ) 787 , e ) 191
[EX A]: c

[EX Q]: Problem: a light has a rating of 60 watts , it is replaced with a new light that has 12 % higher wattage . how many watts does the new light have ? 
Options: a ) 105 , b ) 67 , c ) 80 , d ) 60 , e ) 100
[EX A]:
b