A water tank with capacity of 2.85 MG is being filled at a rate of 1,750 gpm. How many hours will it take to fill the tank?

• A. 16.3 hours
• B. 27.1 hours
• C. 32.2 hours
• D. 24.5 hours

Answer: (B)

The key idea is to use time = volume ÷ flow rate, making sure the units match. Convert the tank capacity to gallons: 2.85 million gallons equals 2,850,000 gallons. With a fill rate of 1,750 gallons per minute, the time in minutes is 2,850,000 ÷ 1,750 ≈ 1,628.57 minutes. Convert that to hours by dividing by 60: 1,628.57 ÷ 60 ≈ 27.14 hours, which rounds to about 27.1 hours. So it takes roughly 27.1 hours to fill the tank.