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: in an examination it is necessary for a candidate to get 45 % of the maximum marks to pass . a candidate who gets 180 marks , fails by 45 marks . find the maximum marks .
Options: a ) 450 , b ) 600 , c ) 500 , d ) 550 , e ) 650
[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 5 percent and the mobile phone at a profit of 10 percent . overall he make a .
Options: a ) 50 , b ) 288 , c ) 27 , d ) 200 , e ) 881
[EX A]: a

[EX Q]: Problem: ramu bought an old car for rs . 42000 . he spent rs . 10000 on repairs and sold it for rs . 64900 . what is his profit percent ?
Options: a ) 17 % , b ) 19 % , c ) 24.8 % , d ) 14 % , e ) 16 %
[EX A]:
c