Task: Question Answering
Input (English): Problem: 29 persons can repair a road in 16 days , working 5 hours a day . in how many days will 30 persons , working 6 hours a day , complete the work ? 
Options: a ) 12.88 , b ) 3.88 , c ) 13.88 , d ) 15 , e ) 18.8
Output (English): a