Task: Question Answering
Input (English): Problem: the distance between a & b is 1540 km. a person is traveling from a to b at 100 km / hr started at 6 am and another person is traveling from b to a at 120 km / hr and started at same time. then at what time they meet together.
Options: a. 11 am, b. 1 pm, c. 3 pm, d. 10 am, e. 9 am
Output (English): b