Task: Question Answering
Input (English): Problem: one pipe can fill a tank three times as fast as another pipe . if together the two pipes can fill tank in 36 min , then the slower pipe alone will be able to fill the tank in ? 
Options: a ) 766 min , b ) 656 min , c ) 144 min , d ) 877 min , e ) 555 min
Output (English): c