Task: Question Answering
Input (English): Problem: a train travels at the rate of 10 miles / hr for the first hour of a trip, at 20 miles / hr for the second hour, at 30 miles / hr for the third hour and so on. how many hours will it take the train to complete a 360 - mile journey ? assume that the train makes no intermediate stops.
Options: a. 8, b. 8.5, c. 9, d. 9.5, e. 10
Output (English): a