Task: Question Answering
Input (English): Problem: how many seconds will a 600 m long train take to cross a man walking with a speed of 3 km / hr in the direction of the moving train if the speed of the train is 63 km / hr ? 
Options: a ) 22 , b ) 36 , c ) 99 , d ) 77 , e ) 12
Output (English): b