Task: Question Answering
Input (English): Problem: of the 120 passengers on flight 750 , 40 % are female . 10 % of the passengers sit in first class , and the rest of the passengers sit in coach class . if 1 / 3 of the passengers in first class are male , how many females are there in coach class ? 
Options: a ) 40 , b ) 48 , c ) 50 , d ) 52 , e ) 56
Output (English): a