Answer is in the attachment below.
first tank because the other filling at 5/9 gallon for 20mins compared to the first tank filling at 5/8 gallon for 8mins
To compare the filling rates of two tanks, we calculated their rates in gallons per hour. Tank 1 fills at approximately 0.893 gallons per hour, while Tank 2 fills at approximately 0.8333 gallons per hour. Therefore, Tank 1 is filling faster than Tank 2.
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