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

[EX Q]: Problem: a and b began business with rs . 3000 and rs . 4000 after 8 months , a withdraws rs . 1000 and b advances rs . 1000.00001 more . at the end of the year , their profits amounted to rs . 714 find the share of a .
Options: a ) 240 , b ) 272 , c ) 379 , d ) 277 , e ) 122
[EX A]: b

[EX Q]: Problem: a man invests in a 16 % stock at 128 . the interest obtained by him is
Options: a ) 22.5 % , b ) 42.5 % , c ) 12.5 % , d ) 62.5 % , e ) 82.5 %
[EX A]:
c