选择题
2009 AMC 8 Problem 6: Filling a Pool
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?
A.
40
B.
42
C.
44
D.
46
E.
48