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'.

[EX 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
[EX A]: c

[EX Q]: Problem: on dividing 13698 by a certain number , we get 89 as quotient and 14 as remainder . what is the divisor ? 
Options: a ) 743 , b ) 154 , c ) 852 , d ) 741 , e ) 785
[EX A]: b

[EX Q]: Problem: the difference between a number and its two - fifth is 510 . what is 20 % of that number ? 
Options: a ) 58 , b ) 170 , c ) 95 , d ) 100 , e ) 120
[EX A]:
b