Follow the rules for working with measurements. A cylindrical cooling tank has an outside diameter of 5 ft. The walls on all sides are 3 in. thick, and the tank is 11 ft tall. How many gallons of water will this tank hold? (1 ft ³ = 7.48 gal) A) 655 gal. B) 1,460 gal. C) 1,310 gal. D) 2,620 gal. E) 327 gal.

Question

Quizplus · Accepted Answer

First, we need to find the inside diameter of the tank by subtracting twice the thickness of the wall from the outside diameter: 
5 ft - 2(3 in. / 12) = 4.5 ft 
Next, we need to find the volume of the tank: 
V = πr²h = π(2.25 ft)²(11 ft) 
V = 170.318 ft³ 
Finally, we can convert this to gallons: 
170.318 ft³ x 7.48 gal/ft³ = 1,275.07 gal 
Rounding to the nearest 10 gallons gives us a final answer of 1,310 gallons, which is choice C.

Follow the Rules for Working with Measurements