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 how many years will a sum of money doubles itself at 12 % per annum on simple interest ?
Options: a ) 15 % , b ) 20 % , c ) 10 % , d ) 8 % , e ) 22 %

Answer: d

Question: Problem: ravi and kavi start a business by investing a ' 3000 and a ' 72000 , respectively . find the ratio of their profits at the end of year .
Options: a ) 2 : 24 , b ) 5 : 24 , c ) 7 : 24 , d ) 1 : 24 , e ) 3 : 24

Answer: d

Question: Problem: suresh started a business , investing rs . 18000 . after 3 months and 4 months respectively , rohan and sudhir joined him with capitals of 12000 and 9000 . at the end of the year the total profit was rs . 3795 . what is the difference between rohan ' s and sudhir ' s share in the profit ?
Options: a ) s . 345 , b ) s . 350 , c ) s . 352 , d ) s . 362 , e ) s . 368

Answer:
a