Task: Question Answering
Input (English): Problem: two trains of equal length are running on parallel lines in the same directions at 46 km / hr. and 36 km / hr. the faster trains pass the slower train in 18 seconds. the length of each train is :
Options: a. 25 m, b. 50 m, c. 72 m, d. 80 m, e. none of these
Output (English): a