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: 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
[EX A]: c

[EX Q]: Problem: ravi purchased a refrigerator and a mobile phone for rs . 15000 and rs . 8000 respectively . he sold the refrigerator at a loss of 4 percent and the mobile phone at a profit of 11 percent . overall he make a . 
Options: a ) 228 , b ) 288 , c ) 27 , d ) 200 , e ) 280
[EX A]: e

[EX Q]: Problem: if the simple interest on a certain amount in at 4 % rate 5 years amounted to rs . 2400 less than the principal . what was the principal ? 
Options: a ) 1500 , b ) 2500 , c ) 2507 , d ) 3000 , e ) 11500
[EX A]:
d