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'.

Problem: the profit earned by selling an article for rs . 753 is equal to the loss incurred when the same article is sold for rs . 455 . what should be the sale price for making 50 % profit ? 
Options: a ) 706 , b ) 786 , c ) 906 , d ) 896 , e ) 696
c

Problem: what is the value of â ˆ š 81 % ? 
Options: a ) 25 % , b ) 36 % , c ) 42 % , d ) 60 % , e ) 90 %
e

Problem: 40 % of 2 is equal to 
Options: a ) 0.2 , b ) 0.8 , c ) 0.6 , d ) 0.7 , e ) 0.9

b