Water flows into a swimming pool at the rate of 5.85 gal/min. If the pool dimensions are 21.2 ft wide, 46.1 ft long and 19.4 ft deep, how long does it take to fill the pool? (1 gallon = 231 cubic inches) Answer in units of min.

First, calculate volume:

volume = 21.2 ft * 46.1 ft * 19.4 ft

volume = 18,960 ft^3

Convert to gallon:

volume = 18,960 ft^3 * (12 in / 1 ft) ^3 * (1 gallon / 231 in^3)

volume = 141,830.71 gallon

Therefore the time is:

time = 141,830.71 gallon / (5.85 gal/min)

time = 24,244.57 min