Task: Question Answering
Input (English): Problem: a train passes a station platform in 30 sec and a man standing on the platform in 20 sec. if the speed of the train is 54 km / hr. what is the length of the platform ?
Options: a. 120 m, b. 240 m, c. 168 m, d. 75 m, e. 60 m
Output (English): e