Task: Question Answering
Input (English): Problem: the workforce of company x is 50 % female . the company hired 20 additional male workers , and as a result , the percent of female workers dropped to 50 % . how many employees did the company have after hiring the additional male workers ? 
Options: a ) 225 , b ) 220 , c ) 230 , d ) 235 , e ) 240
Output (English): b