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: vijay sells a cupboard at 10 % below cost price . had he got rs . 1500 more , he would have made a profit of 10 % . what is the cost price of the cupboard ? 
Options: a ) 7450 , b ) 7500 , c ) 7400 , d ) 7500 , e ) none of these
[EX A]: b

[EX Q]: Problem: a doctor prescribed 18 cubic centimeters of a certain drug to a patient whose body weight was 105 pounds . if the typical dosage is 2 cubic centimeters per 15 pounds of the body weight , by what percent was the prescribed dosage greater than the typical dosage ? 
Options: a ) 8 % , b ) 9 % , c ) 11 % , d ) 12.5 % , e ) 14.28 %
[EX A]: e

[EX Q]: Problem: john and david can finish a job together in 2 hours . if john can do the job by himself in 3 hours , what percent of the job does david do ? 
Options: a ) 36.33 % , b ) 33.33 % , c ) 39.33 % , d ) 40.33 % , e ) 33 %
[EX A]:
b