Task: Question Answering
Input (English): Problem: if w / x = 5 / 7 and w / y = 4 / 7 , then ( x + y ) / y = 
Options: a ) 1 / 2 , b ) 7 / 3 , c ) 6 / 7 , d ) 1 / 5 , e ) 11 / 13
Output (English): b