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: 30 is what percent of 100 ?
Options: a ) 35 % , b ) 30 % , c ) 45 % , d ) 50 % , e ) 55 %

Answer: b

Question: Problem: indu gave bindu rs . 2500 on compound interest for 2 years at 4 % per annum . how much loss would indu has suffered had she given it to bindu for 2 years at 2 % per annum simple interest ?
Options: a ) 1 , b ) 2 , c ) 3 , d ) 4 , e ) 5

Answer: a

Question: Problem: if an examination 63 % of the candidates in english , 65 % passed in mathematics , and 27 % failed in both subjects . what is the pass percentage ?
Options: a ) 55 % , b ) 60 % , c ) 65 % , d ) 75 % , e ) none .

Answer:
a