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: rs . 900 amounts to rs . 920 in 3 years at simple interest . if the interest is increased by 3 % , it would amount to how much ?
Options: a ) rs . 1056 , b ) rs . 1001 , c ) rs . 2056 , d ) rs . 1026 , e ) rs . 1856
[A]: b

[Q]: Problem: ravi and kavi start a business by investing a ' 6000 and a ' 72000 , respectively . find the ratio of their profits at the end of year .
Options: a ) 2 : 12 , b ) 5 : 12 , c ) 7 : 12 , d ) 1 : 12 , e ) 3 : 12
[A]: d

[Q]: Problem: if 5 % more is gained by selling an article for rs . 600 than by selling it for rs . 580 , the cost of the article is ?
Options: a ) 127 , b ) 688 , c ) 400 , d ) 121 , e ) 123
[A]:
c