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'.

[Q]: Problem: last year sandy saved 6 % of her annual salary . this year , she made 10 % more money than last year , and she saved 9 % of her salary . the amount saved this year was what percent of the amount she saved last year ? 
Options: a ) 140 % , b ) 152 % , c ) 165 % , d ) 176 % , e ) 190 %
[A]: c


[Q]: Problem: two boys starts from the same place walking at the rate of 5.5 kmph and 7.5 kmph respectively in the same direction . what time will they take to be 32 km apart ? 
Options: a ) 18 , b ) 16 , c ) 19 , d ) 15 , e ) 34
[A]: b


[Q]: Problem: what is the compound interest paid on a sum of rs . 3000 for the period of 3 years at 10 % per annum . 
Options: a ) 900 , b ) 930 , c ) 990 , d ) 993 , e ) none of these
[A]:
d