Task: Question Answering
Input (English): Problem: a vendor sells 30 percent of the apples he had and throws away 20 percent of the remainder . the next day , the vendor sells 50 percent of the remaining apples and throws away the rest . in total , what percent of his apples does the vendor throw away ? 
Options: a ) 40 , b ) 42 , c ) 44 , d ) 46 , e ) 48
Output (English): b