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: evaluate : 28 % of 400 + 45 % of 250 
Options: a ) 220.3 , b ) 224.5 , c ) 190.3 , d ) 150 , e ) none of these
[A]: b


[Q]: Problem: a and b began business with rs . 3000 and rs . 4000 after 8 months , a withdraws rs . 1000 and b advances rs . 1000 more . at the end of the year , their profits amounted to rs . 630 find the share of a ? 
Options: a ) 240 , b ) 278 , c ) 209 , d ) 267 , e ) 262
[A]: a


[Q]: Problem: a person buys an article at rs . 460 . at what price should he sell the article so as to make a profit of 18 % ? 
Options: a ) 542 , b ) 882 , c ) 772 , d ) 662 , e ) 521
[A]:
a