Task: Question Answering
Input (English): Problem: speed of a boat in still water is 5 km / hr and speed of the stream is 2 kmph . a man rows to a place at a distance of 252 km and comes back to the starting point the total time taken by him is . 
Options: a ) 160 hr , b ) 200 hr , c ) 120 hr , d ) 140 hr , e ) 180 hr
Output (English): b