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: a candidate got 35 % of the votes polled and he lost to his rival by 2430 votes . how many votes were cast ?
Options: a ) 7500 , b ) 3388 , c ) 8100 , d ) 2888 , e ) 2661

Answer: c

Question: Problem: the annual interest rate earned by an investment increased by 11 percent from last year to this year . if the annual interest rate earned by the investment this year was 22 percent , what was the annual interest rate last year ?
Options: a ) 17 % , b ) 19 % , c ) 18 % , d ) 20 % , e ) 22 %

Answer: d

Question: Problem: henry earns $ 120 a week from his job . his income increased and now makes $ 180 a week . what is the percent increase ?
Options: a ) 70 % , b ) 60 % , c ) 50 % , d ) 40 % , e ) 30 %

Answer:
c