Task: Question Answering
Input (English): Problem: the ratio of the number of females to males at a party was 1 : 2 but when 6 females and 6 males left , the ratio became 1 : 3 . how many people were at the party originally ? 
Options: a ) 24 , b ) 28 , c ) 32 , d ) 36 , e ) 40
Output (English): d