AMC 8 2009 Problem 6

Steve's empty swimming pool will hold $24,000$ gallons of water when full. It will be filled by $4$ hoses, each of which supplies $2.5$ gallons of water per minute. How many hours will it take to fill Steve's pool? $\textbf{(A)}\ 40 \textbf{(B)}\ 42 \textbf{(C)}\ 44 \textbf{(D)}\ 46 \textbf{(E)}\ 48$