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
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Q: Problem: by selling 16 pens for a rupee a woman loses 5 % . how many for a rupee should he sell in order to gain 18 % ? 
Options: a ) 12 , b ) 14 , c ) 45 , d ) 13 , e ) 65

A: d
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Q: Problem: a sum was put a simple interest at a certain rate for 1 years . had it been put at 6 % higher rate , it would have fetched rs . 30 more . the sum is : 
Options: a ) s . 500 , b ) s . 600 , c ) s . 700 , d ) s . 800 , e ) s . 900

A:
a
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