Task: Question Answering
Input (English): Problem: 10 is 6 % of a , and 6 is 10 % of b . c equals b / a . what is the value of c ? 
Options: a ) 3 / 10 , b ) 6 / 17 , c ) 9 / 25 , d ) 10 / 33 , e ) 12 / 35
Output (English): c