Task: Question Answering
Input (English): Problem: two trains 140 m and 160 m long run at the speed of 60 km / hr and 40 km / hr respectively in opposite directions on parallel tracks . the time which they take to cross each other is ? 
Options: a ) 7 , b ) 8.2 , c ) 2 , d ) 10.8 , e ) 11.2
Output (English): d