Question

A barrel filled with oil is a cylinder with a diameter of 22 inches and a height of 33.5 inches. There are 231 cubic inches in a liquid gallon. To the nearest gallon, how many gallons of oil does the barrel hold?

A) 50 gallons
B) 52 gallons
C) 55 gallons
D) 58 gallons

Answer 1

C. 55 gallons because the formula for cylinder volume is V=pi•radius^2•height. So plug in the given values like in the pic below and then divide that by 231 to find the gallons