Task: Question Answering
Input (English): Problem: a vendor sells 60 percent of apples he had and throws away 15 percent of the remainder . next day he sells 50 percent of the remainder and throws away the rest . what percent of his apples does the vendor throw ? 
Options: a ) 17 , b ) 23 , c ) 77 , d ) 26 , e ) 30
Output (English): b