Question 1012273
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1.
L=length=26.2 feet=8.0 meters
W=width=16.3 feet=5.0 meters
D=Depth=5 feet=1.5 meters
Added water depth=8 inches=0.2 meters
Hose rate=10 gal/min=37.9 liters/min

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2.
Amount added=(8.0m)(5.0m)(0.2m)=8m^3=8000 liters=2113.4 gallons
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3.
8000 liters/(37.9 liters/min)=211.1 min= 3 hours 31.1 minutes
2113 gallons/(10gal/min)=211.3 min=3 hours 31.3 minutes 
12 second discrepancy in fill time due to rounding.