Task: Question Answering
Input (English): Problem: to asphalt 1 km road , 30 men spent 12 days working 8 hours per day . how many days , 20 men will spend to asphalt a road of 2 km working 15 hours a day ? 
Options: a ) 23 , b ) 22 , c ) 21 , d ) 20 , e ) 19.2
Output (English): e