Task: Question Answering
Input (English): Problem: 6 women can do 75 unit of work in 8 days by working 5 hr / day in how many days 4 women do 30 units of work by working 8 hr / day 
Options: a ) 3 , b ) 4 , c ) 5 , d ) 6 , e ) 7
Output (English): a