In this task, you need to answer the given multiple-choice question on the general math. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

[Q]: Problem: a house wife saved $ 2.50 in buying an item on sale . if she spent $ 25 for the item , approximately how much percent she saved in the transaction ? 
Options: a ) 8 % , b ) 9 % , c ) 10 % , d ) 11 % , e ) 12 %
[A]: b


[Q]: Problem: when 1 / 10 % of 4,000 is subtracted from 1 / 10 of 4,000 , the difference is 
Options: a ) 50 , b ) 200 , c ) 396 , d ) 398 , e ) 400
[A]: c


[Q]: Problem: on dividing 52 by a number , the quotient is 16 and the remainder is 4 . find the divisor ? 
Options: a ) 1 , b ) 3 , c ) 5 , d ) 7 , e ) 9
[A]:
b