Task: Question Answering
Input (English): Problem: a man traveled a total distance of 900 km . he traveled one - third of the whole trip by plane and the distance traveled by train is two - thirds of the distance traveled by bus . if he traveled by train , plane and bus , how many kilometers did he travel by bus ? 
Options: a ) 240 , b ) 280 , c ) 320 , d ) 360 , e ) 400
Output (English): d