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'.
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Question: Problem: in a restaurant , the profit is 120 % of the cost . if the cost increases by 12 % but the selling price remains constant , approximately what percentage of the selling price is the profit ? 
Options: a ) 30 % , b ) 49 % , c ) 90 % , d ) 100 % , e ) none of these

Answer: b


Question: Problem: what percent of 12.4 kg is 20 gms ? 
Options: a ) 25 , b ) 16 , c ) 18 , d ) 19 , e ) 17

Answer: b


Question: Problem: sonika bought a v . c . r . at the list price of 18,500 . if the rate of sales tax was 8 % , find the amount she had to pay for purchasing the v . c . r . 
Options: a ) 19,980 , b ) 19,780 , c ) 19,680 , d ) 19,380 , e ) none of these

Answer:
a