Task: Question Answering
Input (English): Problem: a man can row 7 â ½ kmph in still water . if in a river running at 1.5 km / hr an hour , it takes him 50 minutes to row to a place and back , how far off is the place ? 
Options: a ) 4 km , b ) 2 km , c ) 5 km , d ) 3 km , e ) 1 km
Output (English): d